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Bard vs Kimi K2

0 vs 2 benchmarks won

Google
Bard
Moonshot AI
Kimi K2
Overview
CompanyGoogleMoonshot AI
Release dateMar 21 2023Jul 11 2025
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
128k
Benchmarks
Science reasoning
GPQA Diamond
75.1%
Software engineering
SWE-Bench Verified
65.8%
Multimodal understanding
MMMU
Timeline
Release gapBard shipped 843 days before Kimi K2

Which is better: Bard or Kimi K2?

Kimi K2 leads Bard on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Bard shipped 843 days before Kimi K2, so benchmark comparisons should account for the intervening progress.

Kimi K2 is an open-source / open-weight model; Bard is proprietary.

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 Kimi K2 released?
Kimi K2 was released by Moonshot AI on Jul 11 2025.
Is Bard or Kimi K2 open source?
Kimi K2 is an open-source / open-weight model released by Moonshot AI. Bard is a proprietary model released by Google.

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