OpenAI: gpt-5-chat-latest:free
gpt-5-chat-latest:free
128K context16.4K outToolsParallel toolsVisionFilesCacheStructuredStreamingSystem msg
Released Aug 7, 2025Knowledge cutoff 2024Updated Aug 7, 2025
GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.
Mode chatTokenizer GPTModerated
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Input price
$0.00/ 1M tokens
Output price
$0.00/ 1M tokens
Context window 128K tokensCompatible endpoints openaiVendor OpenAI
Performance
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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 |
|---|---|---|
| max_tokens | All providers | - |
| response_format | All providers | - |
| seed | All providers | - |
| structured_outputs | All providers | - |