Model Tracker
GPT-5.4 Pro
GPT-5.4 Pro is an AI model made by OpenAI. OpenAI released it on 5 March 2026. It is generally available. It takes text, image and returns text.
GPT-5.4 Pro is an AI model made by OpenAI. OpenAI released it on 5 March 2026. It is generally available. It takes text, image and returns text. Its context window is 1,050,000 tokens. Its longest answer is 128,000 tokens. Its knowledge cutoff is 31 August 2025.
- Released
- 5 March 2026 — openai.com, read 19 October 2026
- Status
- Generally available — developers.openai.com, read 19 October 2026
- Takes
- Text, Image — developers.openai.com, read 19 October 2026
- Returns
- Text — developers.openai.com, read 19 October 2026
- Open weights
- Not confirmed: OpenAI's pages do not state whether GPT-5.4 Pro has open weights.
- Licence
- Not confirmed: OpenAI's pages do not print a licence for GPT-5.4 Pro.
- Context window
- 1,050,000 tokens — developers.openai.com, read 19 October 2026
- Longest answer
- 128,000 tokens — developers.openai.com, read 19 October 2026
- Knowledge cutoff
- 31 August 2025 — developers.openai.com, read 19 October 2026
- API price, input
- Not confirmed: OpenAI's API pricing page does not list GPT-5.4 Pro. Although its model page displays an input rate, the register requires the price from the maker's pricing page.
- API price, output
- Not confirmed: OpenAI's API pricing page does not list GPT-5.4 Pro. Although its model page displays an output rate, the register requires the price from the maker's pricing page.
- Where
- API, Consumer app — openai.com, read 19 October 2026
- Parameters
- Not confirmed: OpenAI's pages do not publish a parameter count for GPT-5.4 Pro.
- Model card
- Not confirmed: No model card or system card specifically for GPT-5.4 Pro is identified on the maker's pages.
Benchmarks
Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.
Epoch AI
- Epoch Capabilities Index, GPT-5.4 Pro: 159.0 (156.5–161.7), as of 19 October 2026
- GPQA Diamond, gpt-5.4-pro-2026-03-05_xhigh: 94.6% (± 1.6), run 20 March 2026
- FrontierMath, tiers 1–3, gpt-5.4-pro-2026-03-05_xhigh: 82.5% (± 2.3), run 13 June 2026
- FrontierMath, tier 4, gpt-5.4-pro-2026-03-05_xhigh: 58.5% (± 7.8), run 13 June 2026
- SimpleQA Verified, gpt-5.4-pro-2026-03-05_xhigh: 46.3% (± 1.6), run 27 August 2026
Epoch AI, ‘Capabilities & benchmarking’, epoch.ai/benchmarks, CC BY 4.0: Epoch AI’s own runs and its Capabilities Index. Data · CC BY 4.0
Questions
When was GPT-5.4 Pro released?
OpenAI released GPT-5.4 Pro on 5 March 2026.
Is GPT-5.4 Pro still available?
Yes: it is generally available, as OpenAI states it.
What is the context window of GPT-5.4 Pro?
The context window of GPT-5.4 Pro is 1,050,000 tokens, as OpenAI prints it.
What does GPT-5.4 Pro take and return?
GPT-5.4 Pro takes text, image and returns text.
What is the knowledge cutoff of GPT-5.4 Pro?
The knowledge cutoff of GPT-5.4 Pro is 31 August 2025.
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Sources
- GPT-5.4 Pro Model | OpenAI API (read 19 October 2026)
- All models | OpenAI API (read 19 October 2026)
- Pricing | OpenAI API (read 19 October 2026)
- Introducing GPT-5.4 (read 19 October 2026)