Model · OpenAI · Text
GPT-4.1
OpenAI's developer-first frontier model for coding, instruction following, and long-context work. It is the API-oriented successor line to older GPT-4 variants.
- Modality
- Text
- License
- Proprietary (Proprietary)
- Context window
- 1,000,000 tokens
- Released
- April 14, 2025
- Last verified
- May 10, 2026
- Runs locally
- No
- Also handles
- vision
Strengths
- 1M-token context window for large codebases and long document sets
- Major jump over GPT-4o on coding and instruction following
- Strong multimodal understanding without switching to a separate vision model
Weaknesses
- API-only — not exposed as a stable end-user product line
- Closed weights
- Not a dedicated deep-reasoning model like OpenAI's o-series
Try it
| Where | Type | Notes |
|---|---|---|
| OpenAI API | hosted-api | API only |
Version history
- GPT-4.1 Apr 2025 Current
- GPT-4.1 mini Apr 2025
Official sources
- Announcement announcement
- Model docs docs
Change log
- — Added after verification of the GPT-4.1 family launch and current availability.
Esc