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

GPT-5.1 (Thinking, Low) from OpenAI ranks #419 of 743 LLMs on the LLMs Tiger aggregate benchmark score (47.5), 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 2026-10-13T20:47Z)
Aggregate rank: #419 of 743 (score 47.5)

Across the 1 benchmark where at least ten models are scored, GPT-5.1 (Thinking, Low) 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, Low) benchmark results

GPT-5.1 (Thinking, Low) benchmark scores, ranked against all models measured on each benchmark
Benchmark	Score	Rank	Source	Captured
ARC-AGI-2	1.9%	#67 of 87	ARC Prize official leaderboard	2026-10-13

About GPT-5.1 (Thinking, Low)

GPT-5.1 (Thinking, Low) 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, Low) stands

On our aggregate score, GPT-5.1 (Thinking, Low) is #419 of 743 ranked models, around the middle of the table. Its score is 47.5; the scale is centred on 50, so it sits 2.5 points below the typical model. That beats 44% of the ranked field. Among the 88 ranked OpenAI models it is #52. The next one up is GPT-5.5 Instant at 47.6. The next one down is Codex Mini (Latest) at 47.5.

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

GPT-5.1 (Thinking, Low) lands below the middle on ARC-AGI-2: 1.9%, #67 of 87, with 76% of the field scoring higher. GPT-6 Astra (max) leads at 95.0%; the closest result above is Gemini 2.5 Flash (Preview) (Thinking 24K) at 2.5%. It covers abstract reasoning, ARC Prize public eval set. The board median is 22.8%, so GPT-5.1 (Thinking, Low) is 20.8 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, Low) 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), Qwen2.5-Coder-3B-Instruct ($0.010, 46.5). 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

#416 Qwen2-VL-72B-Instruct (47.6)
#417 GPT-5.5 Instant (47.6)
#418 Qwen2.5-VL-72B-Instruct (47.6)
#420 grok-4-1 (47.5)
#421 Claude Code + Sonnet 5 (47.5)
#422 Grok Build + Grok 4.5 (47.5)