Claude 2: benchmark scores, price and ranking

Claude 2 from Anthropic ranks #667 of 743 LLMs on the LLMs Tiger aggregate benchmark score (43.7), based on 4 benchmark results captured up to 2026-10-13.

Organisation: Anthropic
Type: Frontier model
Open weights: No
Released: 2023-07-11 (source: curated)
Aggregate rank: #667 of 743 (score 43.7)

Relative to other models, Claude 2 is strongest on Epoch ECI (#127 of 204) and weakest on SWE-bench Verified (#70 of 73).

Across the 4 benchmarks where at least ten models are scored, Claude 2 is in the top 10% on 0 and in the top half on 0.

Claude 2 benchmark results

Claude 2 benchmark scores, ranked against all models measured on each benchmark
Benchmark	Score	Rank	Source	Captured
Epoch ECI	120	#127 of 204	Epoch AI Benchmarking Hub	2026-10-13
SWE-bench Test	2.0%	#8 of 11	SWE-bench Test leaderboard	2026-10-13
SWE-bench Lite	3.0%	#17 of 20	SWE-bench Lite leaderboard	2026-10-13
SWE-bench Verified	4.4%	#70 of 73	SWE-bench Verified leaderboard	2026-10-13

About Claude 2

Claude 2 is a frontier model from Anthropic. It was released on 2023-07-11, according to the developer's announcement. No API price is listed for it yet. We hold 4 benchmark results for it across 2 areas, and none is in the top tenth of its board.

Where Claude 2 stands

On our aggregate score, Claude 2 is #667 of 743 ranked models, in the lower half. Its score is 43.7; the scale is centred on 50, so it sits 6.3 points below the typical model. That beats 10% of the ranked field. Among the 70 ranked Anthropic models it is #64. The next one up is Claude 3.5 Sonnet (Jun 2024) at 44.2. The next one down is claude-3-opus-20240229 at 43.2.

Claude 2, benchmark by benchmark

Claude 2 lands below the middle on Epoch ECI: 120, #127 of 204, with 62% of the field scoring higher. Qwen 3.8 Max leads at 156; the closest result above is Claude Instant at 120. It covers Epoch Capabilities Index: Epoch's own aggregate of ~40 benchmarks. The board median is 127, so Claude 2 is 7 points below it. Source: Epoch AI Benchmarking Hub, captured 2026-10-13.

Claude 2 lands below the middle on SWE-bench Test: 2.0%, #8 of 11, with 64% of the field scoring higher. Claude 4.5 Opus leads at 52.6%; the closest result above is Claude 3 Opus at 10.5%. It covers real GitHub issues resolved. The board median is 12.5%, so Claude 2 is 10.5 points below it. Source: SWE-bench Test leaderboard, captured 2026-10-13.

SWE-bench Lite is a weak spot. Claude 2 scores 3.0%, #17 of 20, behind 80% of the models measured. The leader, Claude 4 Sonnet, reaches 56.7%. It covers real GitHub issues resolved. The board median is 24.7%, so Claude 2 is 21.7 points below it. Source: SWE-bench Lite leaderboard, captured 2026-10-13.

SWE-bench Verified is a weak spot. Claude 2 scores 4.4%, #70 of 73, behind 95% of the models measured. The leader, Claude Opus 4.7 (max), reaches 83.5%. It covers real GitHub issues resolved. The board median is 56.4%, so Claude 2 is 52.0 points below it. Source: SWE-bench Verified leaderboard, captured 2026-10-13.

Strengths and weaknesses

Software engineering: weak, ahead of 10% of the field on average across 2 benchmarks. Its best board here is SWE-bench Lite (#17 of 20) and its weakest is SWE-bench Verified (#70 of 73). General knowledge and chat: uneven, ahead of 33% of the field on average across 2 benchmarks. Its best board here is Epoch ECI (#127 of 204) and its weakest is SWE-bench Test (#8 of 11).

Release history

The next one was claude-2.0 on 2023-07-11, at 42.2.

Reading these numbers

The 4 scores on this page come from 4 sources: Epoch AI Benchmarking Hub (1), SWE-bench Lite leaderboard (1), SWE-bench Test leaderboard (1), SWE-bench Verified leaderboard (1). 3 of them come from an official leaderboard and 1 from datasets or third-party runs. With 4 results the aggregate rank can move a lot when one new score arrives.

Models ranked nearby

#664 GPT-4 (Mar 2023) (43.7)
#665 gemma-2-27b (43.7)
#666 mistral-medium-2508 (43.7)
#668 Llama-3.1-405B-Instruct (43.6)
#669 granite-3.1-2b-base (43.6)
#670 deepseek-r1-0528-qwen3-8b (43.6)