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Claude Opus 4.8 vs Gemini 3.1 Flash-Lite

Anthropic Claude Opus 4.8 vs Google Gemini 3.1 Flash-Lite — side-by-side specs.

Anthropic
Claude Opus 4.8
Google
Gemini 3.1 Flash-Lite
Overview
CompanyAnthropicGoogle
Release dateMay 28 2026Mar 3 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Agentic coding
SWE-Bench Pro
69.2%
Agentic terminal coding
Terminal-Bench 2.1
74.6%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
49.8%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
57.9%
Agentic computer use
OSWorld-Verified
83.4%
Agentic financial analysis
Finance Agent v2
53.9%
Knowledge work
GDPval-AA
1890
Timeline
Release gapGemini 3.1 Flash-Lite shipped 86 days before Claude Opus 4.8

Which is better: Claude Opus 4.8 or Gemini 3.1 Flash-Lite?

Claude Opus 4.8 and Gemini 3.1 Flash-Lite don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 3.1 Flash-Lite shipped 86 days before Claude Opus 4.8, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Claude Opus 4.8 and Gemini 3.1 Flash-Lite don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Claude Opus 4.8 released?
Claude Opus 4.8 was released by Anthropic on May 28 2026.
When was Gemini 3.1 Flash-Lite released?
Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.

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