Model Tracker
GPT-4.1
GPT-4.1 is an AI model made by OpenAI. OpenAI released it on 14 April 2025. It is deprecated. It takes text, image and returns text.
GPT-4.1 is an AI model made by OpenAI. OpenAI released it on 14 April 2025. It is deprecated. It takes text, image and returns text. Its context window is 1,047,576 tokens. Its longest answer is 32,768 tokens. Through the API it costs $2.00 per 1M tokens for input and $8.00 per 1M tokens for output. Its knowledge cutoff is 1 June 2024.
- Released
- 14 April 2025 — openai.com, read 16 October 2026
- Status
- Deprecated — developers.openai.com, read 16 October 2026
- Takes
- Text, Image — developers.openai.com, read 16 October 2026
- Returns
- Text — developers.openai.com, read 16 October 2026
- Open weights
- Not confirmed: The official pages consulted do not state whether GPT-4.1’s weights are openly downloadable.
- Licence
- Not confirmed: The official pages consulted do not name a licence for GPT-4.1.
- Context window
- 1,047,576 tokens — developers.openai.com, read 16 October 2026
- Longest answer
- 32,768 tokens — developers.openai.com, read 16 October 2026
- Knowledge cutoff
- 1 June 2024 — developers.openai.com, read 16 October 2026
- API price, input
- $2.00 per 1M tokens — developers.openai.com, read 19 October 2026
- API price, output
- $8.00 per 1M tokens — developers.openai.com, read 19 October 2026
- Where
- API — openai.com, read 16 October 2026
- Parameters
- Not confirmed: The official pages consulted do not publish a parameter count for GPT-4.1.
- Model card
- Not confirmed: The official pages consulted do not identify a GPT-4.1 model card or system card.
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.
Arena
- Text Arena, gpt-4.1-2025-04-14: 1,415 (1,411–1,418, 50,312 votes), published 15 October 2026
- Vision Arena, gpt-4.1-2025-04-14: 1,214 (1,207–1,221, 41,017 votes), published 9 October 2026
Arena’s leaderboard dataset (lmarena-ai/leaderboard-dataset on Hugging Face), CC BY 4.0: ratings from people’s votes between two anonymous models, as Arena publishes them. Data · CC BY 4.0
Epoch AI
- Epoch Capabilities Index, GPT-4.1: 136.8 (133.7–138.6), as of 19 October 2026
- GPQA Diamond, gpt-4.1-2025-04-14: 66.9% (± 2.8), run 14 April 2025
- FrontierMath, tiers 1–3, gpt-4.1-2025-04-14: 6.0% (± 1.4), run 27 August 2026
- SWE-bench Verified, gpt-4.1-2025-04-14: 48.5% (± 2.3), run 8 February 2026
- OTIS Mock AIME 2024–2025, gpt-4.1-2025-04-14: 38.3% (± 6.3), run 14 April 2025
- SimpleQA Verified, gpt-4.1-2025-04-14: 31.1% (± 1.5), run 31 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-4.1 released?
OpenAI released GPT-4.1 on 14 April 2025.
Is GPT-4.1 still available?
It is deprecated: OpenAI has announced the date it will retire it.
What is the context window of GPT-4.1?
The context window of GPT-4.1 is 1,047,576 tokens, as OpenAI prints it.
How much does the GPT-4.1 API cost?
On the standard tier, GPT-4.1 costs $2.00 per 1M tokens for input and $8.00 per 1M tokens for output, as OpenAI lists it.
What does GPT-4.1 take and return?
GPT-4.1 takes text, image and returns text.
What is the knowledge cutoff of GPT-4.1?
The knowledge cutoff of GPT-4.1 is 1 June 2024.
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Sources
- Introducing GPT-4.1 in the API (read 16 October 2026)
- GPT-4.1 Model | OpenAI API (read 16 October 2026)
- Deprecations | OpenAI API (read 16 October 2026)
- GPT-4.1 Model | OpenAI API (read 19 October 2026)
- GPT-4.1 Model | OpenAI API (read 19 October 2026)