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Claude Haiku 4.5 vs Gemini 3.1 Flash-Lite

Anthropic Claude Haiku 4.5 vs Google Gemini 3.1 Flash-Lite — side-by-side specs.

Anthropic
Claude Haiku 4.5
Google
Gemini 3.1 Flash-Lite
Overview
CompanyAnthropicGoogle
Release dateOct 15 2025Mar 3 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Coding
SWE-Bench Verified
73.3%
Science
GPQA Diamond
73%
Timeline
Release gapClaude Haiku 4.5 shipped 139 days before Gemini 3.1 Flash-Lite

Which is better: Claude Haiku 4.5 or Gemini 3.1 Flash-Lite?

Claude Haiku 4.5 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. Claude Haiku 4.5 shipped 139 days before Gemini 3.1 Flash-Lite, 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 Haiku 4.5 and Gemini 3.1 Flash-Lite don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Claude Haiku 4.5 released?
Claude Haiku 4.5 was released by Anthropic on Oct 15 2025.
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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