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o3

NEWFEATURED

OpenRouter

Advanced reasoning model with step-by-step thinking for complex problems. 200K context.

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Model Specifications

Speed
balanced
Tier
advanced
Input Limit
200,000 tokens
~150,000 words
Output Limit
100,000 tokens
~75,000 words
Input Cost
$0.002
per 1K tokens
Output Cost
$0.008
per 1K tokens

What o3 Excels At

  • reasoning
  • analysis
  • vision
  • multimodal
  • thinking mode
  • code generation
  • long context

Pricing & Access

o3 is available on JustSimpleChat with flexible pricing.

API Pricing:

  • Input: $0.002 per 1,000 tokens
  • Output: $0.008 per 1,000 tokens
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Frequently Asked Questions

What is o3?

o3 is Advanced reasoning model with step-by-step thinking for complex problems. 200K context. It's developed by OpenRouter and offers 200,000 tokens of context with balanced response times. Available now on JustSimpleChat.

How much does o3 cost?

o3 costs $0.002 per 1,000 input tokens and $0.008 per 1,000 output tokens. You can use it on JustSimpleChat with flexible pricing options. Check our pricing page for current rates.

What's the context window of o3?

o3 supports 200,000 input tokens and 100,000 output tokens. This large context window makes it ideal for analyzing long documents, codebases, and extensive conversations.

How fast is o3?

o3 is classified as balanced speed. This means it's balanced, offering a good mix of speed and thoughtful responses. Perfect for complex reasoning, detailed analysis, and tasks requiring careful consideration.

What are the best use cases for o3?

o3 excels at complex problem-solving and logical analysis, data analysis and research, analyzing images and visual content, working with text, images, and other media. As a premium model, it delivers exceptional quality for demanding applications.

Is o3 good for coding?

Yes! o3 is excellent for coding tasks. It supports code generation and can help with debugging, refactoring, and writing code across multiple programming languages. Many developers use it for pair programming and code review.

Can I use o3 for free?

JustSimpleChat offers free trial credits that you can use with o3. Sign up to start using this model and explore our 200+ AI models with flexible pricing options.

How do I access o3 on JustSimpleChat?

Getting started with o3 is easy: 1) Sign up or log in to JustSimpleChat, 2) Open the chat interface, 3) Select o3 from the model picker, and 4) Start chatting! No complex setup required - just choose and use.

What capabilities does o3 have?

o3 supports reasoning, analysis, vision, multimodal, thinking mode, code generation, and more. This makes it a versatile choice for a wide range of AI-powered tasks and applications.

How does o3 compare to other AI models?

o3 is part of OpenRouter's model lineup. On JustSimpleChat, you can easily compare it with 200+ other models from providers like OpenAI, Google, Anthropic, and more. Try different models side-by-side to find the best fit for your needs.

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o3, Pricing, 200K Context, Features | JustSimpleChat | JustSimpleChat