GPT-5.1: added the launch-reported SWE-bench Verified result; this is historical evidence, not a newly measured improvement
Quantifying AI's coding precision through standardized SWE-bench verified performance metrics.
Added the launch-reported SWE-bench Verified result; this is historical evidence, not a newly measured improvement — verified by the OnAirToday AI Progress Tracker against OpenAI's published documentation.
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The OnAirToday AI Progress Tracker recorded a verified change to OpenAI's GPT-5.1 (version gpt-5.1): Added the launch-reported SWE-bench Verified result; this is historical evidence, not a newly measured improvement.
GPT-5.1 is an OpenAI model supporting text and image input, text output, configurable reasoning, and tool-assisted workflows. This is a provisional historical profile rather than a completed current-state recheck: live source retrieval is unavailable here, so availability, pricing, and successor releases as of September 19, 2026 remain unverified.
What changed in this review:
- Live verification was unavailable; retained specifications and USD-per-million-token prices should not be treated as currently revalidated.
- Supplied security excerpts describe launches and capability concerns, not qualifying incidents; their full articles were not independently checked.
Teams building on GPT-5.1 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-5-1.
References:
- https://openai.com/index/gpt-5-1/
- https://openai.com/index/gpt-5-1-for-developers/
- https://platform.openai.com/docs/models/gpt-5.1
Generated insight by OnAirToday AI
The inclusion of verified SWE-bench performance markers provides a critical, standardized benchmark for assessing an AI model's real-world software engineering capabilities. This shift toward empirical evidence helps researchers differentiate between genuine architectural breakthroughs and speculative performance claims.

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