Gemini 3 Flash vs Kimi K3: Specs & Benchmark Comparison
Gemini 3 Flash is developed by Google, while Kimi K3 comes from Moonshot AI. Gemini 3 Flash was released in December 2025, and Kimi K3 followed 7 months later in July 2026. Kimi K3 has a published size of about 2.8 trillion parameters; Google has not disclosed the parameter count of Gemini 3 Flash.
We have 3 benchmark results for Gemini 3 Flash and 3 benchmark results for Kimi K3, but they overlap on a single test: GPQA, where Kimi K3 scores 94.0% against 90.0%.
Gemini 3 Flash is the cheaper API at $0.50 per million input tokens and $3 per million output tokens, roughly 6 times cheaper than Kimi K3 at $3 and $15. Both accept a context window of about 1M tokens. Gemini 3 Flash accepts text, images, audio, and video as input, while Kimi K3 accepts text and images.
| Characteristic | Gemini 3 Flash | Kimi K3 |
|---|---|---|
| Company | Moonshot AI | |
| Release Date | December 16, 2025 | July 16, 2026 |
| Parameters | — | 2.8T |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 66K | 1.0M |
| Input Price / 1M | $0.50 | $3.00 |
| Output Price / 1M | $3.00 | $15.00 |
| Average Score | 94.0% | 95.7% |
| Benchmarks | ||
| GPQA | 90.0% | 94.0% |
Visual Benchmark Comparison
Verdict
Gemini 3 Flash leads in 2 out of 4 comparison categories.
Both models show comparable average scores: Gemini 3 Flash — 0.9, Kimi K3 — 1.0.
Gemini 3 Flash is 5.1x cheaper: input $0.50/1M vs $3.00/1M tokens.
Gemini 3 Flash supports a larger context: 1M vs 1M tokens.
Kimi K3 is newer: released 7/16/2026 vs 12/16/2025.
More About These Models
Related Comparisons
Frequently Asked Questions
Which is better for coding — Gemini 3 Flash or Kimi K3?
Which model is cheaper — Gemini 3 Flash or Kimi K3?
Which has a larger context window — Gemini 3 Flash or Kimi K3?
The Gemini 3 Flash and Kimi K3 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3 Flash or Kimi K3 page. See also the complete list of AI model comparisons.