GPT-5.1 Thinking
READER SUMMARYThe deliberative GPT-5.1 tier with greater persistence on complex tasks and broad ChatGPT access.
Why this model scores 78.4
Greater reasoning persistence and complex-task performance support high capability and autonomy, while broad rollout raises deployment and misuse despite retained safeguards.
News tied to GPT-5.1 Thinking
The model score of 78.4 rates this model's risk profile. The overall Doom Index of 61.2 measures the recalibrated complete evidence corpus. These values answer different questions.
Each article's leave-one-out Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores are recalculated from their technical profile and related news, but never feed back into the overall index.
GPT-5.1 becomes ChatGPT's adaptive default across Instant and Thinking tiers
OpenAI released GPT-5.1 Instant and GPT-5.1 Thinking, adding adaptive reasoning and making the new generation ChatGPT's default model family.
- Full item contribution
- +0.05
- GPT-5.1 Thinking equal share
- +0.03
Model score history
- R1Doom Score 78.4
New exact flagship tier absent from the durable catalogue.
11 Aug 2026