When was Claude 3.5 Haiku released?

Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.

When was Gemini 3.1 Pro released?

Gemini 3.1 Pro was released by Google on Feb 19 2026.

Which is better on GPQA Diamond, Claude 3.5 Haiku or Gemini 3.1 Pro?

Gemini 3.1 Pro scores higher on GPQA Diamond — Claude 3.5 Haiku 41.6% vs Gemini 3.1 Pro 94.3%.

Which is better at coding, Claude 3.5 Haiku or Gemini 3.1 Pro?

On SWE-Bench Verified (real-world software-engineering tasks), Gemini 3.1 Pro leads — Claude 3.5 Haiku scores 40.6% and Gemini 3.1 Pro scores 80.6%.

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Home/Compare/Claude 3.5 Haiku vs Gemini 3.1 Pro

Claude 3.5 Haiku vs Gemini 3.1 Pro

0 vs 2 benchmarks won

	Anthropic Claude 3.5 Haiku	Google Gemini 3.1 Pro
Overview
Company	Anthropic	Google
Release date	Oct 22 2024	Feb 19 2026
Model type	—	—
Open source	No	No
Specifications
Parameters	—	—
Context window	—	—
Benchmarks
Science reasoning GPQA Diamond	41.6%	94.3%
Software engineering SWE-Bench Verified	40.6%	80.6%
Multimodal understanding MMMU	—	—
Timeline
Release gap	Claude 3.5 Haiku shipped 485 days before Gemini 3.1 Pro

Which is better: Claude 3.5 Haiku or Gemini 3.1 Pro?

Gemini 3.1 Pro leads Claude 3.5 Haiku on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.5 Haiku shipped 485 days before Gemini 3.1 Pro, 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 GPQA Diamond, Gemini 3.1 Pro scores 94.3%, 52.7 points above Claude 3.5 Haiku at 41.6%. On SWE-Bench Verified, Gemini 3.1 Pro scores 80.6%, 40 points above Claude 3.5 Haiku at 40.6%.

Frequently asked questions

When was Claude 3.5 Haiku released?: Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
When was Gemini 3.1 Pro released?: Gemini 3.1 Pro was released by Google on Feb 19 2026.
Which is better on GPQA Diamond, Claude 3.5 Haiku or Gemini 3.1 Pro?: Gemini 3.1 Pro scores higher on GPQA Diamond — Claude 3.5 Haiku 41.6% vs Gemini 3.1 Pro 94.3%.
Which is better at coding, Claude 3.5 Haiku or Gemini 3.1 Pro?: On SWE-Bench Verified (real-world software-engineering tasks), Gemini 3.1 Pro leads — Claude 3.5 Haiku scores 40.6% and Gemini 3.1 Pro scores 80.6%.