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Claude Opus 4.6 vs Gemini 3.0 Flash

2 vs 0 benchmarks won

Anthropic
Claude Opus 4.6
Google
Gemini 3.0 Flash
Overview
CompanyAnthropicGoogle
Release dateFeb 5 2026Dec 17 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Agentic coding
SWE-Bench Pro
49.6%
Coding
SWE-Bench Verified
80.8%Best
78%
Agentic terminal coding
Terminal-Bench 2.1
58%
Multi-step tool use
MCP Atlas
62%
General tool use
Toolathlon
49.4%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
33.7%
Abstract reasoning
ARC-AGI-2
33.6%
Science
GPQA Diamond
91.3%Best
90.4%
Agentic computer use
OSWorld-Verified
65.1%
Agentic financial analysis
Finance Agent v2
42.6%
Knowledge work
GDPval-AA
1204
Chart reasoning
CharXiv Reasoning
80.3%
Multimodal reasoning
MMMU-Pro
81.2%
Spatial reasoning
Blueprint-Bench 2
0%
Long context
MRCR v2 (8-needle) · 128k average
67.2%
Long context
MRCR v2 (8-needle) · 1M pointwise
22.1%
Timeline
Release gapGemini 3.0 Flash shipped 50 days before Claude Opus 4.6

Which is better: Claude Opus 4.6 or Gemini 3.0 Flash?

Claude Opus 4.6 leads Gemini 3.0 Flash on 2 of the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). Gemini 3.0 Flash shipped 50 days before Claude Opus 4.6, 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.

On SWE-Bench Verified, Claude Opus 4.6 leads at 80.8% vs Gemini 3.0 Flash at 78%. On GPQA Diamond, Claude Opus 4.6 leads at 91.3% vs Gemini 3.0 Flash at 90.4%.

Frequently asked questions

When was Claude Opus 4.6 released?
Claude Opus 4.6 was released by Anthropic on Feb 5 2026.
When was Gemini 3.0 Flash released?
Gemini 3.0 Flash was released by Google on Dec 17 2025.
Which is better at coding, Claude Opus 4.6 or Gemini 3.0 Flash?
Claude Opus 4.6 leads on SWE-Bench Verified — Claude Opus 4.6 80.8% vs Gemini 3.0 Flash 78%.
Which scores higher on GPQA Diamond, Claude Opus 4.6 or Gemini 3.0 Flash?
Claude Opus 4.6 leads on GPQA Diamond — Claude Opus 4.6 91.3% vs Gemini 3.0 Flash 90.4%.

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