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Bard vs GPT-5.1-Codex-Max

Google Bard vs OpenAI GPT-5.1-Codex-Max — side-by-side specs.

Google
Bard
OpenAI
GPT-5.1-Codex-Max
Overview
CompanyGoogleOpenAI
Release dateMar 21 2023Nov 19 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapBard shipped 974 days before GPT-5.1-Codex-Max

Which is better: Bard or GPT-5.1-Codex-Max?

Bard and GPT-5.1-Codex-Max do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Bard shipped 974 days before GPT-5.1-Codex-Max, 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 Bard released?
Bard was released by Google on Mar 21 2023.
When was GPT-5.1-Codex-Max released?
GPT-5.1-Codex-Max was released by OpenAI on Nov 19 2025.

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