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AI Models · Compare

Claude 4 Opus vs Gemini 2.5 Pro

Side-by-side intelligence, speed, price, benchmarks, strengths and weaknesses.

Anthropic

Claude 4 Opus

ProprietaryFeb 2026

Anthropic’s 2026 flagship — best-in-class on code and long-horizon agents.

Open docs
Google

Gemini 2.5 Pro

ProprietarySep 2025

2M-token context + native multimodality — unbeatable for huge docs.

Open docs

Head to head

Spec
Claude 4 Opus
Gemini 2.5 Pro
Intelligence index↑ better
Winner81
78
Speed↑ better
50 tok/s
Winner110 tok/s
Time to first token↓ better
1.4 s
Winner0.7 s
Context window↑ better
500k
Winner2M
Max output↑ better
32k
Winner66k
Input price↓ better
$8.00 / 1M tokens
Winner$1.25 / 1M tokens
Output price↓ better
$40.00 / 1M tokens
Winner$5.00 / 1M tokens
Blended price↓ better
$16.00 / 1M tokens
Winner$2.19 / 1M tokens
License
Proprietary
Proprietary
Input modalities
text, image
text, image, audio, video
Output modalities
text
text

Benchmark showdown

MMLU
Claude 4 Opus
90.0
Gemini 2.5 Pro
89.5
MMLU Pro
Claude 4 Opus
79.5
Gemini 2.5 Pro
78.5
GPQA
Claude 4 Opus
65.0
Gemini 2.5 Pro
66.0
MATH
Claude 4 Opus
88.0
Gemini 2.5 Pro
91.0
HumanEval
Claude 4 Opus
95.8
Gemini 2.5 Pro
91.5

Strengths, weaknesses and best-for

Claude 4 Opus
Strengths
  • Top HumanEval
  • Long, coherent outputs
  • 500k context
Weaknesses
  • Slower than Sonnet
  • Premium price
Best for
  • Long-context coding
  • Tool-using agents
  • Document understanding
Gemini 2.5 Pro
Strengths
  • 2M context
  • Native video understanding
  • Strong on math
Weaknesses
  • Output ceiling lower than competitors
Best for
  • Whole-codebase analysis
  • Long-doc workflows
  • Video QA

Quick verdict

  • Pick Claude 4 Opus if you want it smarter.
  • Pick Gemini 2.5 Pro if you want it faster, cheaper and longer context.

Auto-generated from the spec sheet. Always validate on your own evals.

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