GPT-5.1 (Thinking, High): benchmark scores, price and ranking

GPT-5.1 (Thinking, High) from OpenAI ranks #350 of 743 LLMs on the LLMs Tiger aggregate benchmark score (48.5), based on 1 benchmark results captured up to 2026-10-13.

Organisation: OpenAI
Type: Frontier model
Open weights: No
Cheapest API price: $1.25 in / $10.00 out per million tokens (via azure, observed 2026-10-13T21:47Z)
Aggregate rank: #350 of 743 (score 48.5)

Across the 1 benchmark where at least ten models are scored, GPT-5.1 (Thinking, High) is in the top 10% on 0 and in the top half on 0.

Its cheapest listed input price, $1.25 per million tokens, is lower than that of 26% of the 427 models with a listed price.

GPT-5.1 (Thinking, High) benchmark results

GPT-5.1 (Thinking, High) benchmark scores, ranked against all models measured on each benchmark
Benchmark	Score	Rank	Source	Captured
ARC-AGI-2	17.6%	#46 of 87	ARC Prize official leaderboard	2026-10-13

About GPT-5.1 (Thinking, High)

GPT-5.1 (Thinking, High) is a frontier model from OpenAI. The cheapest API listing we track charges $1.25 per million input tokens and $10.00 per million output tokens, through azure. We hold 1 benchmark result for it across 1 area, and none is in the top tenth of its board.

Where GPT-5.1 (Thinking, High) stands

On our aggregate score, GPT-5.1 (Thinking, High) is #350 of 743 ranked models, around the middle of the table. Its score is 48.5; the scale is centred on 50, so it sits 1.5 points below the typical model. That beats 53% of the ranked field. Among the 88 ranked OpenAI models it is #45. The next one up is chatgpt-4o-latest (2025-02-15) at 48.6. The next one down is o1-mini (high) at 48.4.

GPT-5.1 (Thinking, High), benchmark by benchmark

GPT-5.1 (Thinking, High) lands below the middle on ARC-AGI-2: 17.6%, #46 of 87, with 52% of the field scoring higher. GPT-6 Astra (max) leads at 95.0%; the closest result above is GPT-5.4 mini (xhigh) at 18.9%. It covers abstract reasoning, ARC Prize public eval set. The board median is 22.8%, so GPT-5.1 (Thinking, High) is 5.1 points below it. Source: ARC Prize official leaderboard, captured 2026-10-13.

Price and value

The median input price across the 427 priced models is $0.500 per million tokens, so GPT-5.1 (Thinking, High) costs more than the typical listing. Models that score within 1.5 points or better and cost less: Qwen2.5-Coder-7B-Instruct ($0.010, 49.5), DeepSeek V4.1 Flash (high) ($0.010, 48.9), DeepSeek V4 Flash 0731 (max) ($0.016, 53.1). Similar scores cost more on Codex Mini (Latest) ($1.50) and Magistral Medium ($1.50).

Reading these numbers

The 1 score on this page comes from 1 source: ARC Prize official leaderboard (1). 1 of them come from an official leaderboard and 0 from datasets or third-party runs. With 1 results the aggregate rank can move a lot when one new score arrives.

Models ranked nearby

#347 Mellum2-12B-A2.5B-Thinking (48.5)
#348 Qwen3.8-27B (XHigh) (48.5)
#349 SWE-agent-LM-32B (48.5)
#351 glm-4.5 (48.4)
#352 codestral-2405 (48.4)
#353 gemini-1.5-flash-002 (0924) (48.4)