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Changelog

August 8, 2026 · v4.2.0

  • feature
    Try it without an account

    You now get five free messages a day without signing up at all. Type a question on the home page and you go straight into the chat, no form in the way. Web search works, so you can ask about things that happened today.

  • feature
    Free accounts doubled to ten messages a day

    Signing in takes the free allowance from five messages a day to ten, and unlocks file uploads, image generation, saved history and the full set of tools.

  • improvement
    Your first question is never lost

    Whatever you type on the home page now carries into the chat and sends itself when you arrive, whether you are signed in or not. Nothing to retype, even on your very first visit.

  • feature
    Scheduled tasks

    Ask for something on a schedule and it runs without you. A morning briefing, a weekly summary, a regular check on a topic you follow. Each task keeps its own chat so you can read back everything it has produced.

  • improvement
    Web searches collapse to their sources

    A reply that searched several times used to stack a card for every search, each printing the exact words it looked up. They are now a single quiet line showing the sites it read, with a count for the rest, and the searches themselves are one click away if you want them. While it is searching you can watch the sources arrive.

August 7, 2026 · v4.1.0

  • improvement
    Replies start sooner

    We cut the hidden setup text sent to the model on every message by about seventy per cent, and tools now load only when the assistant actually reaches for one. You should notice answers beginning faster, especially on longer conversations.

  • fix
    Long PDFs no longer slow down every later message

    A large attached document used to be re-sent with every follow-up in that conversation, which made each reply slower than the last. Documents are now read once and consulted on demand, so a fifty-page PDF costs you nothing after the first question.

  • fix
    Stop really means stop

    Pressing stop mid-reply sometimes looked like a failure and quietly started the whole answer again. It now stops cleanly, and the part of the answer already written stays on screen instead of vanishing.

  • improvement
    Security and privacy hardening

    A full review of every part of the app that can act on your account, with the findings fixed the same day. Chats can only be edited, published or deleted by the person who owns them.

August 6, 2026 · v4.0.0

  • feature
    Projects

    Group related chats together and give the project standing instructions, so every conversation inside it already knows the context. Useful for a piece of ongoing work, a client, or a subject you keep coming back to.

  • feature
    Connectors

    Connect outside tools to your chats from Settings, and the assistant can use them the way it uses web search. Every action pauses for your approval before it runs, so nothing happens on your behalf without you seeing it first.

  • feature
    Pinned chats

    Pin the conversations you return to and they stay at the top of the sidebar instead of drifting down as new chats arrive.

  • feature
    Choose how hard the model thinks

    Reasoning models now have a simple control in the composer for how much thinking to do before answering. Turn it up for a hard problem, down when you want a quick reply.

  • improvement
    Suggestions that match your conversation

    The prompt suggestions on a new chat are now drawn from what you have actually been working on, rather than the same generic four every time.

  • improvement
    Chat titles that describe the chat

    New conversations get a real title from your first message instead of sitting as "New Chat" until you rename them.

  • fix
    Claude Sonnet 5 answers as Claude Sonnet 5

    Two separate faults meant that choosing Claude Sonnet 5 could quietly hand your message to a different, smaller model. Both are fixed, and there are now tests that fail the build if it happens again.

August 5, 2026 · v3.9.0

  • feature
    A calmer, faster interface

    The chat and the public pages have been rebuilt around the content. Less chrome, steadier typography, and answers that stream in smoothly instead of arriving in jumps.

  • improvement
    The model picker opens instantly

    It used to take well over a second to appear. It now opens in about a quarter of that, with the newest models first and a featured section that reflects what is genuinely worth reaching for today.

  • improvement
    Generated images save themselves

    Images you create now appear in your Library automatically. The separate save button is gone, and so is the risk of closing a tab and losing the picture.

  • fix
    GPT-5.6 Pro models work

    The Pro variants failed on send. They needed a reasoning setting rather than a separate model, which is now handled properly, and they are available again.

  • improvement
    Auto Mode rebuilt against current benchmarks

    Every routing decision was reviewed against up-to-date independent benchmark data, so Auto Mode picks better models for each kind of question across the board.

August 4, 2026 · v3.8.0

  • feature
    Claude Opus 5

    Anthropic’s newest flagship is available in the picker for paid plans, alongside a batch of recent additions from other providers.

  • improvement
    Fewer interruptions on long conversations

    Adding or removing a tool part-way through a chat used to throw away the work already cached for that conversation, which made the next reply slower. It no longer does.

July 22, 2026 · v3.7.0

  • feature
    Twenty-seven new models

    Including GPT-5.6, Claude Sonnet 5, Claude Fable 5, Grok 4.5, GLM 5.2 and Kimi K3. As always they appear in the picker as soon as they are available, with no separate subscription for any of them.

  • feature
    Gemini 3.6 Flash and 3.5 Flash Lite

    Two fast Google models added, with the lighter one wired into Auto Mode for short questions and quick follow-ups.

June 1, 2026 · v3.6.1

  • improvement
    Long-term memory moves to a dedicated service

    What the assistant remembers about you between conversations is now handled by a purpose-built memory platform, which makes recall more consistent across chats.

  • fix
    A run of model routing fixes

    Roughly twenty fixes across the model catalogue: thinking modes that failed on certain models, images being sent to models that cannot see them, and several models pointing at retired endpoints. Fewer dead ends in the picker.

May 22, 2026 · v3.6.0

  • feature
    Voice input

    Tap the microphone in the message box to speak instead of type. Your speech is transcribed straight into the composer, so you can dictate questions hands-free.

  • feature
    Read responses aloud

    Every assistant reply now has a read-aloud button. Listen to answers in a natural voice, and choose from several voices (Aria, Atlas, Sol and more) in Settings.

  • improvement
    Faster, lower-cost replies

    The system prompt is now cached across requests on supported models, and streamlined for signed-out users, so responses start sooner and cost less without changing answer quality.

  • improvement
    Times and dates match your timezone

    The assistant now uses your browser timezone for “today”, “now”, and other time-sensitive answers instead of UTC.

  • improvement
    More reliable tool use

    When a model produces a malformed tool request, the assistant now repairs it automatically instead of failing, so web search, image generation, and other tools succeed more often.

May 19, 2026 · v3.5.1

  • feature
    Gemini 3.5 Flash now available

    Google has just announced Gemini 3.5 Flash and it is already available in the JustSimpleChat model picker. It is fast, supports up to one million tokens of context, and includes a thinking mode for harder prompts.

  • improvement
    Smarter, faster Auto Mode

    Auto Mode now picks Gemini 3.5 Flash for everyday simple and standard prompts, so replies come back quicker on routine questions. Harder prompts still route to higher-capability models when that is the better fit.

  • improvement
    Lighter fast-tier model

    When a lighter model is the best fit, Auto Mode now uses Gemini 3.1 Flash Lite. It keeps responses snappy on short questions and quick follow-ups while reducing cost.

May 16, 2026 · v3.5.0

  • feature
    Import public ChatGPT share links

    You can now import a public ChatGPT share link into JustSimpleChat from the Import chat link option in the sidebar. The imported conversation becomes a private chat in your JustSimpleChat history.

  • feature
    Short share-link import route

    Changing a ChatGPT share URL to a JustSimpleChat share URL now opens the import flow with the link ready to review, so moving a public shared chat into JustSimpleChat is quicker.

  • fix
    Restored the intended dark visual theme

    A styling issue that could make the app look wrong on some phones and browsers has been corrected. The app should now keep a consistent dark appearance across chat, navigation, dialogs, and public pages.

  • fix
    Cleaner chat message box

    The chat message box has been tidied up so the typing area and the model controls sit together more naturally, without extra lines or heavy focus styling getting in the way.

  • improvement
    More useful social and web tools

    The assistant has expanded X support for finding posts, checking public profiles, reading timelines, and working with social context when those tools are available.

May 14, 2026 · v3.4.4

  • feature
    Compare models side by side

    You can compare a response with another model from the chat, making it easier to see which model gives the better answer for the same prompt.

  • feature
    Full-screen model picker

    The model picker has been redesigned with search, categories, provider logos, and clearer controls for Auto Mode and reasoning preferences.

  • fix
    Better mobile chat controls

    Mobile chat controls now fit more cleanly, avoid awkward overflow, and stop the keyboard from opening unexpectedly when browsing models.

  • fix
    Clearer model selection state

    The model trigger now keeps the right label after you choose a specific model, and model lists are less likely to appear empty while account access is loading.

May 12, 2026 · v3.4.3

  • feature
    Deep Research workflow

    Deep Research is now a fuller research workflow with progress updates, broader source coverage, report synthesis, and completed reports saved back into chat.

  • feature
    Memory controls in settings

    Memory support has been added with settings to view, manage, and pause memory use, giving you more control over what the assistant can remember.

  • improvement
    Chats keep running more reliably

    Longer replies and background chat runs are more resilient, with better history updates while a response is still being generated.

  • improvement
    Cleaner chat readability

    Response typography, active chat highlighting, streaming indicators, and generated chat titles have been polished so conversations are easier to scan.

May 8, 2026 · v3.4.2

  • feature
    Code and document workspace improvements

    Agent tools now have stronger sandbox support, clearer tool activity, and better file download/export handling for generated work.

  • improvement
    Faster and more dependable model routing

    Auto Mode, provider fallbacks, model access rules, prompt caching, and simple-chat routing were tuned so everyday chats should feel quicker and fail less often.

  • fix
    PDF export fixes

    PDF exports now handle more characters correctly, reducing failures caused by unsupported glyphs in generated documents.

  • fix
    Account, billing, and error handling hardening

    Several behind-the-scenes fixes make login, payment verification, Stripe flows, and error reporting more reliable without adding friction to normal chat use.

May 4, 2026 · v3.4.0

  • feature
    New and updated model choices

    The model catalogue has been refreshed with newer GPT, Claude, Grok, DeepSeek, Cohere, Google, Mistral, and Llama options. The aim is simple: more current models, fewer dead ends, and better choices in one place.

  • improvement
    Auto Mode is better at picking the right model

    Auto Mode now uses fresh scorecard data to choose models more confidently for writing, coding, research, reasoning, and everyday chat. You can still pick a model yourself, but leaving it on Auto should now feel more reliable.

  • fix
    Fewer broken or unavailable model choices

    We removed duplicate model entries and turned off models that were failing live checks, so the picker should show fewer options that look available but fail when you try to use them.

  • improvement
    More reliable model routing

    Several providers now route through the most dependable connection available. That means fewer failed replies and a smoother experience when a model is best served through a partner route.

  • improvement
    A faster, more stable foundation

    We updated the AI engine and app runtime behind JustSimpleChat. This is mostly invisible, but it helps keep the app faster, more compatible, and easier to improve.

April 28, 2026 · v3.3.2

  • feature
    Updated OpenAI model lineup

    The OpenAI model list has been refreshed, including newer GPT models and better handling for reasoning settings. This should make the latest OpenAI options easier to find and use.

  • improvement
    Web search behaves more naturally

    The assistant is now better at deciding when web search is useful and when it should answer directly. Fresh information should still be searched, while normal questions should feel quicker.

  • fix
    Restored the intended visual styling

    A styling issue from the deployment pipeline was corrected, restoring the intended look and feel across the app.

April 26, 2026 · v3.3.0

  • improvement
    Smarter Auto Mode decisions

    Auto Mode now looks more carefully at what you are asking for before choosing a model. Simple tasks can use faster models, while harder reasoning and coding tasks can be sent to stronger ones.

  • improvement
    Better continuity during longer chats

    Routing improvements help the app keep context when conversations become more detailed, especially when a task needs several replies to complete properly.

  • fix
    Cleaner handling when models change provider

    Some models are available through more than one provider. JustSimpleChat now does a better job choosing the cleaner route, which helps avoid confusing duplicates and failed attempts.

April 18, 2026 · v3.2.5

  • improvement
    Refreshed model pages and comparisons

    Model pages and comparison links have been refreshed so it is easier to browse popular models, compare options, and choose what fits your task.

  • improvement
    Top models are easier to find

    The model selector now highlights a fresher set of strong everyday choices, so you do not need to dig through the full catalogue as often.

  • feature
    More current model choices

    Recent releases from Anthropic, xAI, and DeepSeek have been added or re-routed where needed, giving you more up to date options in one place.

March 5, 2026 · v3.2.2

  • feature
    Added GPT-5.4, GPT-5.4 Pro, and GPT-5.3

    New OpenAI models were added to the picker, including GPT-5.4, GPT-5.4 Pro, GPT-5.3, and related GPT options. This gives you newer choices for stronger reasoning, writing, coding, and general assistant work.

  • improvement
    Better model labels and defaults

    The model picker was updated so newer models appear more clearly and Auto Mode can favour stronger defaults where they make sense.

January 29, 2026 · v3.2.1

  • feature
    Kimi K2.5 and a wider model line-up

    Added Kimi K2.5 from Moonshot AI and refreshed a wider set of models, giving you more choice for writing, reasoning, and longer conversations.

  • fix
    Cleaner model descriptions

    Tidied model copy and fixed small display issues so model details are easier to read and less likely to show awkward formatting.

January 4, 2026 · v3.2.0

  • feature
    GPT-5.1 series added

    Added the GPT-5.1 series and refreshed provider model settings, giving Auto Mode and manual selection newer OpenAI options to work with.

  • improvement
    Better provider reliability

    Cleaned up the model catalogue, removed older Gemini 1.0 options, and added provider checks so unavailable models are easier to catch before they affect your chat.

  • fix
    Smoother guest chat handling

    Improved guest account creation and chat saving, including fixes for duplicate chat IDs and migration edge cases.

December 17, 2025 · v3.1.12

  • feature
    Gemini 3 Flash

    Added Gemini 3 Flash through Google, giving you another fast option for everyday questions, summaries, and general assistant work.

  • feature
    More recent models across providers

    Added a fresh batch of models from the previous month across supported providers, keeping the model picker closer to what is currently available.

December 7, 2025 · v3.1.11

  • improvement
    Sign-in required for sending messages

    Sending messages now requires an account. This helps protect the service from abuse and keeps access more reliable for genuine users.

  • fix
    Important security updates

    Updated the app framework and React packages with security fixes, along with safer handling for image generation routes.

November 24, 2025 · v3.1.10

  • feature
    Claude Opus 4.5, GPT-5.1, Grok 4.1 Fast, and Olmo 3

    Added Claude Opus 4.5, updated the OpenAI flagship list to GPT-5.1, added Grok 4.1 Fast from xAI, and added Olmo 3 from Ai2.

  • improvement
    Auto Mode now favours newer flagship models

    Auto Mode mappings were refreshed to make better use of Grok 4.1, GPT-5.1, and Claude Opus 4.5 when they are a good fit for the task.

  • fix
    Cleaner Gemini 3 Pro handling

    Corrected Gemini 3 Pro model details and removed confusing duplicate entries so the picker is easier to trust.

November 18, 2025 · v3.1.9

  • feature
    15+ new AI models from October and November

    Added more than 15 newer models from October and November releases, with the featured list updated so the strongest options are easier to find.

  • improvement
    Better access to top-tier models

    Plan access rules were refreshed so newly added higher-tier models are included correctly where your plan allows them.

October 30, 2025 · v3.1.8

  • improvement
    More controlled web search

    Search behaviour was tuned so the assistant is less likely to over-search, loop, or fall back awkwardly when a normal answer is enough.

  • improvement
    Large uploads can carry more context

    The system prompt limit was increased for large uploads, helping the assistant keep more useful context when working with bigger files or detailed instructions.

October 18, 2025 · v3.1.7

  • feature
    Claude Haiku 4.5

    Added Claude Haiku 4.5 to the Anthropic model list, giving you another fast Claude option for lighter chats and everyday tasks.

  • improvement
    Reasoning is easier to follow

    Reasoning output now streams more naturally in the interface, so it is clearer when a model is thinking through a harder answer.

  • improvement
    Gemini and Vertex AI routing improvements

    Gemini provider routing was refreshed through Vertex AI, with stronger chat streaming reliability and cleaner web tool behaviour.

October 10, 2025 · v3.1.6

  • feature
    Memory and text correction tools

    Added early memory support and a text correction tool, making it easier for the assistant to help with ongoing context and quick writing fixes.

  • improvement
    Better file context in chats

    Uploaded files now carry clearer URLs into chat prompts, helping the assistant understand and refer back to attachments more reliably.

October 8, 2025 · v3.1.5

  • feature
    New blog, model, and comparison pages

    Added a full blog setup, expanded model pages, comparison pages, and new guides written in a more helpful consumer style.

  • improvement
    Clearer pricing, providers, and feature pages

    Refreshed key public pages so it is easier to understand what JustSimpleChat offers, which providers are included, and how the platform compares.

  • feature
    GPT-5 Pro

    Added GPT-5 Pro to the model list and featured options, with updated model details and cleaner handling in the picker.

October 6, 2025 · v3.1.4

  • feature
    Follow-up suggestions

    Chats can now suggest useful follow-up questions after a reply, making it easier to keep exploring without thinking of the next prompt from scratch.

  • improvement
    More useful response details

    Added a more accurate streaming token tracker and clearer model badges with provider icons, so you can better see what model answered and how the response performed.

  • fix
    Smoother chat layout and account migration

    Fixed mobile overflow issues, improved follow-up formatting, and made guest-to-account chat migration more reliable.

October 3, 2025 · v3.2.0

  • feature
    Smarter web answers with verified sources

    The assistant now verifies answers by reading official pages directly. When asking about service status (like Royal Mail or Canada Post), flight updates, or government services, it fetches the actual page to give you accurate, real-time information instead of guessing.

  • feature
    Premium search powered by Perplexity

    Upgraded web search to use Perplexity by default for better quality results with clear source citations. Perfect for research, news, and finding authoritative information. The assistant automatically uses the right search tool based on what you need.

  • improvement
    Read any web page on command

    Just share a URL and ask the assistant to read it. Gets clean content without ads or clutter, perfect for analyzing articles, documentation, or research papers.

October 2, 2025 · v3.1.8

  • improvement
    Faster, more reliable experience

    Updated to the latest AI technology stack with better performance and compatibility. Navigation between pages is now smoother and more responsive.

  • fix
    Behind-the-scenes improvements

    Fixed several technical issues to make everything run more smoothly and reliably.

September 29, 2025 · v3.1.7

  • feature
    Claude Sonnet 4.5

    Added Anthropic's latest Claude Sonnet 4.5 with superior coding, reasoning, and instruction following. Now featured at the top of the model picker with extended thinking mode and 200K context window.

  • feature
    DeepSeek V3.2 Exp

    Added DeepSeek's latest experimental model with DeepSeek Sparse Attention (DSA) for improved long-context efficiency. Features 163K context window with 65K output at 50%+ lower cost.

  • improvement
    Smarter model routing

    Complexity-aware model selection automatically picks the best model for your task based on benchmark data from over 280 AI models.

  • improvement
    Real-time performance metrics

    See tokens per second (TPS) for every response across all providers, helping you understand model speed and efficiency.

September 26, 2025 · v3.1.6

  • improvement
    Enhanced model line-up

    Added the latest September 2025 models, including updated reasoning and coding specialists.

  • improvement
    Better login tracking

    Improved authentication telemetry for faster troubleshooting and more reliable sign-ins.

September 22, 2025 · v3.1.5

  • improvement
    Refreshed social preview

    Updated social media preview images and artwork for better sharing across platforms.

  • improvement
    Faster response timing

    TPS timer now starts on first data chunk and estimates client-side for instant feedback without page refresh.

September 19, 2025 · v3.1.4

  • feature
    New model: Grok 4 Fast

    Added xAI's Grok 4 Fast with its 2M token context window and optional reasoning traces. It is now selectable in the model picker and Auto Mode routes to it for tougher reasoning tasks.

  • improvement
    Updated xAI defaults

    Promoted Grok 4 Fast across featured lists and fallbacks while keeping Grok 4 (0709) as the heavyweight fallback when you need deeper analysis.

September 18, 2025 · v3.1.3

  • feature
    New model arrivals

    Now featuring Qwen3 Next (instruct & thinking), Qwen Plus 0728, Qwen3 30B & 235B Thinking, StepFun Step3, Moonshot Kimi 0905, Sonoma Alpha previews, Seed OSS 36B, Cogito V2 previews, and NVIDIA Nemotron Nano 9B v2.

  • improvement
    Discover with confidence

    Each new model highlights its strengths (reasoning, coding, multimodal, long-context) so you can pick the right fit faster.

  • improvement
    Freshly verified

    Every addition was live-tested so you can jump in without worrying about availability surprises.

September 11, 2025 · v3.1.2

  • feature
    Simple account recovery

    Added “forgot password” and email verification so you can securely get back into your account.

  • improvement
    Smoother sign‑in

    More reliable guest and OAuth sign‑ins with clearer messages if something goes wrong.

  • improvement
    Easier billing

    Cleaner plan switching and smarter currency handling for a faster checkout.

  • improvement
    Polished experience

    Refreshed pages (Terms, Privacy, Changelog) and general UI copy/visual updates.

  • fix
    Fewer edge‑case errors

    Resolved occasional issues with email handling and sign‑in on certain devices.

September 5, 2025 · v3.1.1

  • feature
    Sign in with Google, GitHub, or Microsoft

    One‑click sign‑in options, plus classic email accounts. Stay as a guest if you prefer.

  • feature
    Web search in chats

    Ask questions that need fresh info. We search the web and summarize with sources.

  • feature
    Image & PDF uploads

    Attach screenshots, photos, and PDFs so the assistant can see and discuss them.

  • improvement
    Smarter model picker

    Auto Mode chooses a great model for your task and enables “thinking” when helpful.

  • improvement
    Bigger model library

    Hundreds of models supported across providers, with better defaults for speed and quality.

August 8, 2025 · v0.2.1

  • feature
    Latest model lineup

    Access to the newest releases (like GPT‑5, Claude 4.1, and Grok 4) across providers.

  • improvement
    Smoother navigation

    Cleaner interface and easier flows across devices for a nicer feel.

  • improvement
    Fresher model info

    Updated model comparison pages so you can pick with confidence.

  • improvement
    Under‑the‑hood polish

    General performance and reliability improvements across the app.

August 7, 2025 · v0.2.0

  • feature
    UltraThink

    Let the AI take a more careful, step‑by‑step approach on harder tasks.

  • feature
    Deep Research

    A guided mode that pulls from multiple sources and returns clear, cited summaries.

  • improvement
    More stable experience

    Lots of reliability fixes so sessions run smoothly without interruptions.

  • improvement
    Faster replies

    Quicker first responses thanks to routing and caching improvements.

August 5, 2025 · v0.1.9

  • feature
    Claude Opus 4.1

    Access Anthropic's latest Claude with stronger reasoning and coding skills.

  • feature
    Open‑weight GPT models

    New open‑weight GPT OSS options for creative work and problem‑solving.

  • improvement
    Better model selection

    The router now picks improved defaults so you get great results with less effort.

July 28, 2025 · v0.1.8

  • feature
    GLM‑4.5 and Qwen 3 Coder

    More choices for reasoning and coding tasks with excellent language coverage.

  • improvement
    Clearer code blocks

    Improved formatting and highlighting makes generated code easier to read.

  • fix
    More reliable uploads

    Better handling for images and documents so you can keep working without hiccups.

July 26, 2025 · v0.1.7

  • fix
    Message sending fixes

    Resolved rare cases where messages didn’t send correctly during streaming.

  • improvement
    Longer file memory

    Uploaded files stay “in mind” longer so follow‑ups feel more natural.

  • improvement
    Large file support

    Smoother handling of bigger files with better caching.

  • improvement
    Smoother conversations

    Fewer interruptions while the AI is replying.

July 26, 2025 · v0.1.5

  • feature
    Early preview with file uploads

    Start a chat, add images and PDFs, and get helpful answers.

  • feature
    Stop streaming

    Stop an answer mid‑way when you already have what you need.

  • improvement
    Clearer search steps

    See when tools run and how results show up in the conversation.

  • fix
    Early stability fixes

    A round of fixes for uploads, scrolling, and login edge cases.