OpenAI: o3-2025-04-16:free
o3-2025-04-16:free
200K context100K outReasoningToolsVisionFilesCacheStructured
Released Apr 16, 2025Knowledge cutoff 2024Updated Apr 16, 2025
o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following. Use it to think through multi-step problems that involve analysis across text, code, and images.
Mode chatTokenizer GPTModerated
Pricing
Input price
$0.00/ 1M tokens
Output price
$0.00/ 1M tokens
Context window 200K tokensCompatible endpoints openaiVendor OpenAI
Performance
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Usage & Ranking
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Supported parameters
All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.
| Parameter | Providers | Default |
|---|---|---|
| include_reasoning | All providers | - |
| max_tokens | All providers | - |
| reasoning | All providers | - |
| response_format | All providers | - |
| seed | All providers | - |
| structured_outputs | All providers | - |
| tool_choice | All providers | - |
| tools | All providers | - |