Gemini 3 Flash vs Kimi K3
Kimi K3 leads the LLM Stats Score 54.6 to 37.0. Gemini 3 Flash is 5.3x cheaper per token.
Google · Moonshot AI · Updated for 2026
Which is better?
Kimi K3 leads the overall LLM Stats Score 54.6 to 37.0, ranking #5 overall.
In the 6 individual benchmarks reported for both models, Kimi K3 wins 6; this is a narrower head-to-head signal than the composite indexes.
On price, Gemini 3 Flash is roughly 5.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Kimi K3 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 3 Flash
- cost matters — it's about 5.3x cheaper per token
Choose Kimi K3
- overall performance matters — it scores 54.6 and ranks #5 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 6 of 6 exact shared results
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Jul 2026
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
24 reported for Gemini 3 Flash · 31 for Kimi K3
Gemini 3 Flash outperforms in 0 benchmarks, while Kimi K3 is better at 6 benchmarks (CharXiv-R, GPQA, Humanity's Last Exam, MCP Atlas, MMMU-Pro, Toolathlon).
Kimi K3 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 3 Flash ($0.50/1M tokens) is 6.0x cheaper than Kimi K3 ($3.00/1M tokens).
For output processing, Gemini 3 Flash ($3.00/1M tokens) is 5.0x cheaper than Kimi K3 ($15.00/1M tokens).
In conclusion, Kimi K3 is more expensive than Gemini 3 Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Kimi K3 accepts 1,048,576 input tokens compared to Gemini 3 Flash's 1,000,000 tokens. Kimi K3 can generate longer responses up to 1,048,576 tokens, while Gemini 3 Flash is limited to 65,536 tokens.
Input capabilities
Documented input modalities across available providers
Both Gemini 3 Flash and Kimi K3 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 3 Flash
Kimi K3
License
Usage and distribution terms
Gemini 3 Flash is licensed under a proprietary license, while Kimi K3 uses Kimi K3 License.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Kimi K3 License
Open weights
Release Timeline
When each model was launched
Gemini 3 Flash was released on 2025-12-17, while Kimi K3 was released on 2026-07-16.
Kimi K3 is 7 months newer than Gemini 3 Flash.
Dec 17, 2025
8 months ago
Jul 16, 2026
1 months ago
7mo newerKnowledge Cutoff
When training data ends
Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while Kimi K3's cutoff date is not specified.
We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Kimi K3's cutoff date.
Jan 2025
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Provider Availability
Gemini 3 Flash is available from Google. Kimi K3 is available from Fireworks, Moonshot AI, Novita, Together.
Gemini 3 Flash
Kimi K3
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 3 Flash and Kimi K3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 3 Flash vs Kimi K3.