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Claude Opus 4.8 vs Gemini 3.0 Flash

6 vs 0 benchmarks won

Anthropic
Claude Opus 4.8
Google
Gemini 3.0 Flash
Overview
CompanyAnthropicGoogle
Release dateMay 28 2026Dec 17 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Agentic coding
SWE-Bench Pro
69.2%Best
49.6%
Coding
SWE-Bench Verified
78%
Agentic terminal coding
Terminal-Bench 2.1
74.6%Best
58%
Multi-step tool use
MCP Atlas
62%
General tool use
Toolathlon
49.4%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
49.8%Best
33.7%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
57.9%
Abstract reasoning
ARC-AGI-2
33.6%
Science
GPQA Diamond
90.4%
Agentic computer use
OSWorld-Verified
83.4%Best
65.1%
Agentic financial analysis
Finance Agent v2
53.9%Best
42.6%
Knowledge work
GDPval-AA
1890Best
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 162 days before Claude Opus 4.8

Which is better: Claude Opus 4.8 or Gemini 3.0 Flash?

Claude Opus 4.8 leads Gemini 3.0 Flash on 6 of the 6 benchmarks they both report. Gemini 3.0 Flash shipped 162 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.

On SWE-Bench Pro, Claude Opus 4.8 leads at 69.2% vs Gemini 3.0 Flash at 49.6%. On Terminal-Bench 2.1, Claude Opus 4.8 leads at 74.6% vs Gemini 3.0 Flash at 58%. On Humanity's Last Exam · no tools, Claude Opus 4.8 leads at 49.8% vs Gemini 3.0 Flash at 33.7%. On OSWorld-Verified, Claude Opus 4.8 leads at 83.4% vs Gemini 3.0 Flash at 65.1%. On Finance Agent v2, Claude Opus 4.8 leads at 53.9% vs Gemini 3.0 Flash at 42.6%. On GDPval-AA, Claude Opus 4.8 leads at 1890 vs Gemini 3.0 Flash at 1204.

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 3.0 Flash released?
Gemini 3.0 Flash was released by Google on Dec 17 2025.
Which is better at coding, Claude Opus 4.8 or Gemini 3.0 Flash?
Claude Opus 4.8 leads on SWE-Bench Pro — Claude Opus 4.8 69.2% vs Gemini 3.0 Flash 49.6%.
Which scores higher on Humanity's Last Exam, Claude Opus 4.8 or Gemini 3.0 Flash?
Claude Opus 4.8 leads on Humanity's Last Exam · no tools — Claude Opus 4.8 49.8% vs Gemini 3.0 Flash 33.7%.

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