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GPT-5.3 Chat OpenAI Deprecated Mistral Small 4 Mistral AI
Context window 128k 256k
Max output 16k No data
Output speed No data 177.6
Quality No data 32.8
Reasoning No data 43.4
Coding No data 31
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Batch API ✓ −
Self-hostable − ✓
Licence Proprietary Open weights
API model id gpt-5.3-chat-latest mistral-small-2603

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  1. GPT-5.3 ChatOpenAI128k
  2. Mistral Small 4Mistral AI256k

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