GPT-4o

weights

closed

data

closed

code

closed

license

Proprietary(API-only)

GPT-4o is available only through the OpenAI API, with no downloadable weights. OpenAI publishes neither its training data nor its training code.

• https://artificialanalysis.ai/models/gpt-4o recorded 2026-09-29

  Artificial Analysis states "GPT-4o (Nov '24) is a proprietary model and OpenAI has not disclosed the model size or parameter count" and measures it only on the vendor endpoint - "generates output at 167.9 tokens per second (based on OpenAI"; no open-weights provider is listed.

• https://developers.openai.com/api/docs/models/gpt-4o recorded 2026-09-29

  OpenAI API model page describing GPT-4o as "is our versatile, high-intelligence flagship model" that "accepts both text and image inputs, and produces text outputs", sold per token ("Pricing is based on the number of tokens used") and pinned through API snapshots ("Snapshots let you lock in a specific version of the model"). Searched the body for weights, download, open-weight and Hugging Face: none, and no training corpus or training code is published.

GPT-4o is still a live API model, but OpenAI publishes no usage count for it, and ChatGPT's user figures no longer describe it: GPT-4o has left ChatGPT, which now runs on the GPT-6 family. No level is assigned until a count of GPT-4o's own use appears.

• https://community.openai.com/t/gpt-6-and-intelligent-ui-in-chatgpt/1404139 recorded 2026-10-09

  OpenAI Developer Community announcement of GPT-6 in ChatGPT: "The global rollout began on October 7 for Plus, Pro, Business, and Enterprise, expanding to Free and Go starting October 8", with GPT-6 Sol on the paid plans and GPT-6 Luna on Free and Go. No usage figure for any model.

• https://developers.openai.com/api/docs/deprecations recorded 2026-10-09

  OpenAI's deprecations page schedules only one GPT-4o text snapshot for removal: "October 23, 2026 gpt-4o-2024-05-13 gpt-5.6-sol". The ChatGPT snapshot was removed earlier ("2026-02-17 chatgpt-4o-latest"). The page carries no usage figure.

• https://developers.openai.com/api/docs/models/gpt-4o recorded 2026-10-09

  OpenAI's API model page lists GPT-4o as a current model, "our versatile, high-intelligence flagship model", with the gpt-4o alias and the gpt-4o-2024-08-06 and gpt-4o-2024-11-20 snapshots available and only gpt-4o-2024-05-13 marked Deprecated. Searched the body for users, requests, tokens served and any usage count: none.

GPT-4o was OpenAI's multimodal flagship in 2024 and is still served through the API, but it now sits far below the current frontier, including OpenAI's own GPT-5 and GPT-6 lines. On the Artificial Analysis index it scores close to Llama 4 Maverick and below the median for comparable models, which places it alongside Llama rather than among the leading models.

• https://artificialanalysis.ai/leaderboards/models recorded 2026-10-09

  The leaderboard's embedded model records, ranked by intelligenceIndex, put Claude Opus 5.5 (Max) first at 57.62, GPT-6 Astra (Max) at 52.67, Gemini 3.1 Pro Preview at 29.72, o3 at 20.20, o4-mini (High) at 16.65, Llama 4 Maverick at 9.99 and GPT-4o (Nov '24) at 8.44. The digest drifts between fetches because the page carries live pricing and throughput figures.

• https://artificialanalysis.ai/models/gpt-4o recorded 2026-10-09

  "GPT-4o (Nov '24) scores 8 on the Artificial Analysis Intelligence Index, placing it at the lower end among comparable models (median: 15)"; Intelligence rank "# 46 / 61"; the page marks the November 2024 snapshot as superseded by a later GPT-4o release.

• https://developers.openai.com/api/docs/models/gpt-4o recorded 2026-10-09

  OpenAI API model page for GPT-4o: "128,000 context window", "Oct 01, 2023 knowledge cutoff", text and image input with text output; the page carries no benchmark figures.