modelgrep

Best LLMs for Science — Anthropic

Match · Updated August 2026

The best Anthropic model for science is Claude Opus 5, scoring 93.2% on GPQA Diamond — graduate-level physics, chemistry and biology. Claude Fable 5 (92.6%) and Claude Opus 4.8 (92.0%) round out the top three.

93.2%GPQA
60.7Intelligence
60 t/sSpeed
$5.00Input /M
1MContext
  1. 1anthropic logo
    claude-opus-5
    ReasoningToolsJSON+160.7 intel · $5.00/M · 60 t/s
    93.2%
    GPQA
  2. 2anthropic logo
    claude-fable-5
    ReasoningToolsJSON+159.9 intel · $10.00/M · 82 t/s
    92.6%
    GPQA
  3. 3anthropic logo
    claude-opus-4.8
    ReasoningToolsJSON+155.7 intel · $5.00/M · 78 t/s
    92.0%
    GPQA
  4. 4anthropic logo
    claude-opus-4.7
    ReasoningToolsJSON+153.5 intel · $5.00/M · 55 t/s
    91.4%
    GPQA
  5. 5anthropic logo
    claude-sonnet-5
    ReasoningToolsJSON+153.4 intel · $2.00/M · 95 t/s
    91.1%
    GPQA
  6. 6anthropic logo
    claude-opus-4.6
    ReasoningToolsJSON+137.8 intel · $5.00/M · 40 t/s
    84.0%
    GPQA
  7. 7anthropic logo
    claude-opus-4.5
    ReasoningToolsJSON+134.7 intel · $5.00/M · 200K ctx
    81.0%
    GPQA
  8. 8anthropic logo
    claude-sonnet-4.6
    ReasoningToolsJSON+135.9 intel · $3.00/M · 52 t/s
    79.9%
    GPQA
  9. 9anthropic logo
    claude-sonnet-4.5
    ReasoningToolsJSON+129.3 intel · $3.00/M · 1M ctx
    72.7%
    GPQA
  10. 10anthropic logo
    claude-opus-4
    ReasoningToolsVision25.5 intel · $15.00/M · 23 t/s
    70.1%
    GPQA
  11. 11anthropic logo
    claude-sonnet-4
    ReasoningToolsVision25.5 intel · $3.00/M · 46 t/s
    68.3%
    GPQA
  12. 12anthropic logo
    claude-haiku-4.5
    ReasoningToolsJSON+123.7 intel · $1.00/M · 123 t/s
    64.6%
    GPQA
  13. 13anthropic logo
    claude-3-haiku
    ToolsVision3.9 intel · $0.250/M · 89 t/s
    37.4%
    GPQA

How this is ranked

AI models ranked by GPQA Diamond — graduate-level physics, chemistry and biology questions written to be un-Googleable, so the score reflects reasoning from knowledge rather than retrieval. The best large language models for scientific research and hard-science work.

Frequently asked

What is the best Anthropic model for science?

The best Anthropic model for science is Claude Opus 5, scoring 93.2% on GPQA Diamond — graduate-level physics, chemistry and biology. Claude Fable 5 (92.6%) and Claude Opus 4.8 (92.0%) round out the top three.

What's a good alternative to Claude Opus 5?

Claude Fable 5 (92.6%) is the closest alternative on this metric, followed by Claude Opus 4.8 (92.0%). See the full ranking above for the tradeoffs.

How many Anthropic models are there?

modelgrep tracks 17 Anthropic models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Claude Opus 5. 13 of them qualify for this ranking.

More Anthropic rankings

All rankings