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Claude 3 Opus

ECI#172
127
Anthropic
Feb. 29, 2024
Closed weights

Claude 3 Opus is a closed-weights model from Anthropic, released February 29, 2024. It has an ECI score of 127 and ranks 172nd of 253 tracked models. At the time of its release, it ranked 1st of 51 tracked models.

Claude 3 Opus vs select alternatives

DomainBenchmark
Claude 3 Opus
Anthropic
Feb. 29, 2024
Closed weights
Anthropic
Aug. 9, 2023
Closed weights
OpenAI
Jan. 25, 2024
Closed weights
Mistral AI
Feb. 26, 2024
Closed weights
ECI scoreBest score 167
127120126122
Ranking#172#192#175#188
Conceptual reasoning
LMCABest score 68.2
17.0—9.8—
DTBenchBest score 99%
62%
46%
62%
56%
Mathematics
MATH Level 5Best score 98%
37%
n/a
40%
24%
OTIS Mock AIME 2024-2025Best score 100%
5%
n/a
n/a
2%
Science
GPQA DiamondBest score 96%
47%
n/a
42%
39%
Software engineering
METR Time HorizonsBest score 17 hr 25 min
3 min 57 sec—5 min 22 sec—
World knowledge
MMLUBest score 88%
85%
73%
80%
69%

Model metadata