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Bard vs GPT-5-Codex-Mini

Google Bard vs OpenAI GPT-5-Codex-Mini — side-by-side specs.

Google
Bard
OpenAI
GPT-5-Codex-Mini
Overview
CompanyGoogleOpenAI
Release dateMar 21 2023Nov 8 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 963 days before GPT-5-Codex-Mini

Which is better: Bard or GPT-5-Codex-Mini?

Bard and GPT-5-Codex-Mini do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Bard shipped 963 days before GPT-5-Codex-Mini, 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-Codex-Mini released?
GPT-5-Codex-Mini was released by OpenAI on Nov 8 2025.

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