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Claude Instant 1.2 vs Gemini 2.5 Pro

0 vs 3 benchmarks won

Anthropic
Claude Instant 1.2
Google
Gemini 2.5 Pro
Overview
CompanyAnthropicGoogle
Release dateAug 9 2023Mar 25 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
86.4%
Software engineering
SWE-Bench Verified
59.6%
Multimodal understanding
MMMU
68%
Timeline
Release gapClaude Instant 1.2 shipped 594 days before Gemini 2.5 Pro

Which is better: Claude Instant 1.2 or Gemini 2.5 Pro?

Gemini 2.5 Pro leads Claude Instant 1.2 on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude Instant 1.2 shipped 594 days before Gemini 2.5 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.

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 Instant 1.2 released?
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
When was Gemini 2.5 Pro released?
Gemini 2.5 Pro was released by Google on Mar 25 2025.

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