Claude Opus 4.6 (120K, Low): benchmark scores, price and ranking

Claude Opus 4.6 (120K, Low) from Anthropic ranks #138 of 743 LLMs on the LLMs Tiger aggregate benchmark score (51.2), based on 1 benchmark results captured up to 2026-10-13.

Organisation: Anthropic
Type: Frontier model
Open weights: No
Released: 2026-02-05 (source: curated)
Cheapest API price: $5.00 in / $25.00 out per million tokens (via anthropic, observed 2026-10-13T21:47Z)
Aggregate rank: #138 of 743 (score 51.2)

Across the 1 benchmark where at least ten models are scored, Claude Opus 4.6 (120K, Low) is in the top 10% on 0 and in the top half on 1.

Its cheapest listed input price, $5.00 per million tokens, is lower than that of 7% of the 427 models with a listed price.

Claude Opus 4.6 (120K, Low) benchmark results

Claude Opus 4.6 (120K, Low) benchmark scores, ranked against all models measured on each benchmark
Benchmark	Score	Rank	Source	Captured
ARC-AGI-2	64.6%	#26 of 87	ARC Prize official leaderboard	2026-10-13

About Claude Opus 4.6 (120K, Low)

Claude Opus 4.6 (120K, Low) is a frontier model from Anthropic. It was released on 2026-02-05, according to the developer's announcement. The cheapest API listing we track charges $5.00 per million input tokens and $25.00 per million output tokens, through anthropic. We hold 1 benchmark result for it across 1 area, and none is in the top tenth of its board.

Where Claude Opus 4.6 (120K, Low) stands

On our aggregate score, Claude Opus 4.6 (120K, Low) is #138 of 743 ranked models, in the top quarter. Its score is 51.2; the scale is centred on 50, so it sits 1.2 points above the typical model. That beats 81% of the ranked field. Among the 70 ranked Anthropic models it is #23. The next one up is Claude Opus 4.6 (120K, Medium) at 51.3. The next one down is Claude 4.5 Sonnet at 51.2.

Claude Opus 4.6 (120K, Low), benchmark by benchmark

ARC-AGI-2 puts Claude Opus 4.6 (120K, Low) at 64.6%, #26 of 87. That beats 70% of the models tested, but 30.4 points short of GPT-6 Astra (max) (95.0%). The results either side are Grok 4.20 (Reasoning) (65.1%) and DeepSeek V4 Flash 0731 (max) (61.4%). It covers abstract reasoning, ARC Prize public eval set. The board median is 22.8%, so Claude Opus 4.6 (120K, Low) is 41.8 points above 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 Claude Opus 4.6 (120K, Low) costs more than the typical listing. Models that score within 1.5 points or better and cost less: DeepSeek V4 Flash 0731 (max) ($0.016, 53.1), Qwen3.7 Flash ($0.030, 50.5), GLM-5.2 (high) ($0.060, 51.6). Similar scores cost more on gpt-4-1106-preview ($10.00) and o1-2024-12-17 ($15.00).

Release history

The Anthropic model released before it was Claude Opus 4.6 (120K, High) on 2026-02-05, which scores 51.5. The next one was Claude Opus 4.6 (120K, Max) on 2026-02-05, at 51.4.

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

#135 Qwen2.5-Coder-14B-Instruct (51.3)
#136 Grok 4.20 (Reasoning) (51.2)
#137 openPangu-2.0-Flash (51.2)
#139 Muse-Glimmer-30B (51.2)
#140 Gemini 2.5 Pro Exp (Mar 2025) (51.2)
#141 GLM-5.1-FP8 (51.2)