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Pyyan / Compare / Claude Opus 4.5 vs Gemini 3.1 Pro

Claude Opus 4.5 vs Gemini 3.1 Pro

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Language Models · verified 13 Aug 2026

Claude Opus 4.5Anthropicdeprecated
Gemini 3.1 ProGooglecurrent
3 slots left
SpecificationClaude Opus 4.5Gemini 3.1 Pro
SummaryLegacy Opus, still callable.Best for very large multimodal context.
Context—1M
LicenceProprietaryProprietary
Model IDclaude-opus-4-5—
CategoryLanguage ModelsLanguage Models
OfficialAnthropic ↗Google ↗

Highlighted rows are where these differ.

Claude Opus 4.5

Legacy Opus, still callable.

Best for pinned workloads.

Full spec sheet →

Gemini 3.1 Pro

  • Reads an hour of video in one pass
  • Strongest multimodal grounding

Best for long documents.

Full spec sheet →