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Claude Sonnet 4.5 vs Gemini 1.0 Nano

3 vs 0 benchmarks won

Anthropic
Claude Sonnet 4.5
Google
Gemini 1.0 Nano
Overview
CompanyAnthropicGoogle
Release dateSep 29 2025Dec 6 2023
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
83.4%
Software engineering
SWE-Bench Verified
77.2%
Multimodal understanding
MMMU
68%
Timeline
Release gapGemini 1.0 Nano shipped 663 days before Claude Sonnet 4.5

Which is better: Claude Sonnet 4.5 or Gemini 1.0 Nano?

Claude Sonnet 4.5 leads Gemini 1.0 Nano on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 1.0 Nano shipped 663 days before Claude Sonnet 4.5, 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 — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Claude Sonnet 4.5 released?
Claude Sonnet 4.5 was released by Anthropic on Sep 29 2025.
When was Gemini 1.0 Nano released?
Gemini 1.0 Nano was released by Google on Dec 6 2023.

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