GPT-4.1 retired from ChatGPT on February 13, 2026; the retirement announcement left API access unchanged

The OnAirToday AI Progress Tracker recorded a verified change to OpenAI's GPT-4.1 (version gpt-4.1-2025-04-14): GPT-4.1 retired from ChatGPT on February 13, 2026; the retirement announcement left API access unchanged.

GPT-4.1 is OpenAI’s text-and-image model for coding, instruction following, and long-context processing, with text output and a context window exceeding one million tokens. It was retired from ChatGPT on February 13, 2026; OpenAI’s retirement announcement left API access unchanged.

What changed in this review:

• GPQA Diamond now reflects OpenAI’s published launch result of 66.3%.
• SWE-bench Verified now reflects OpenAI’s published launch result of 54.6%, rather than a separate leaderboard evaluation.
• Aider Polyglot now reflects OpenAI’s published launch result of 52.9%.
• Added OpenAI’s published AIME 2024 and MMMU launch results.
• Flaws and limitations updated

Teams building on GPT-4.1 should confirm limits, pricing and benchmark coverage against the vendor's own documentation before relying on these figures.

The full profile — capabilities, benchmark citations, known flaws and risk guidance — is on the tracker at /ai-models/gpt-4-1.

References:

• https://platform.openai.com/docs/models/gpt-4.1
• https://openai.com/index/gpt-4-1/
• https://openai.com/index/retiring-gpt-4o-and-older-models/
• https://cookbook.openai.com/examples/gpt4-1promptingguide