| Signal | Result | Reference |
|---|---|---|
| Tokenizer signature | Not measured | – |
| API surface | No other entry shares this exact contract | api_1b9166e5 |
| Context and output | 128,000 context · 4,096 max output | declared |
| Reasoning contract | None declared | declared |
| Serving providers observed | None recorded yet | – |
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...
Supported parameters
frequency_penaltylogit_biaslogprobsmax_completion_tokensmax_tokenspredictionpresence_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_logprobstop_pweb_search_options
defaults: {}
Cite this page as the evidence record for OpenAI: GPT-4o (2024-05-13): the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings.
