Hardest reasoning tasks
Choose Kimi K3
Kimi K3 scores 43.6 on the Artificial Analysis Intelligence Index, against 22.2 for Gemini 3.5 Flash-Lite.
Gemini 3.5 Flash-Lite vs Kimi K3: price, context and capabilities
Choose Gemini 3.5 Flash-Lite for images as input. Choose Kimi K3 for the hardest reasoning tasks and reasoning over long documents.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Gemini 3.5 Flash-Lite reads more per request: 1.05M tokens against 1M.
- Only Gemini 3.5 Flash-Lite offers vision, structured output, prompt caching, batch api.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Reasoning over long documents
Choose Kimi K3
Kimi K3 scores 88.7% on Long-context reasoning (AA-LCR), against 76% for Gemini 3.5 Flash-Lite.
Images as input
Choose Gemini 3.5 Flash-Lite
Gemini 3.5 Flash-Lite accepts images as input; Kimi K3 does not.
Specifications side by side
| Gemini 3.5 Flash-Lite | Kimi K3 | |
|---|---|---|
| Provider | Moonshot AI | |
| Category | Language models | Language models |
| Status | Generally available | Generally available |
| Headline price | $0.85 / 1M tokens | No data |
| Input | $0.30 / 1M tokens | No data |
| Output | $2.50 / 1M tokens | No data |
| Cached input | $0.03 / 1M tokens | No data |
| Context window | 1.05M | 1M |
| Max output | 66k | No data |
| Released | July 2026 | Jul 16, 2026 |
| Knowledge cutoff | No data | No data |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Prompt caching, Batch API | Reasoning, Tool calling |
| API model id | gemini-3.5-flash-lite | kimi-k3 |
Benchmarks side by side
Leader in bold.
| Benchmark | Gemini 3.5 Flash-Lite | Kimi K3 |
|---|---|---|
| Intelligence Index | 22.2 | 43.6 |
| SciCode | 41.3% | 59.5% |
| GPQA Diamond | 83.8% | 93.5% |
| Humanity's Last Exam | 18.8% | 46.9% |
| MMMU-Pro (visual reasoning) | 79% | 80.5% |
| Long-context reasoning (AA-LCR) | 76% | 88.7% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose Gemini 3.5 Flash-Lite or Kimi K3?
Choose Gemini 3.5 Flash-Lite for images as input. Choose Kimi K3 for the hardest reasoning tasks and reasoning over long documents.
Which is cheaper, Gemini 3.5 Flash-Lite or Kimi K3?
A price comparison is not possible: one of them has no comparable published price.
Which has the larger context window, Gemini 3.5 Flash-Lite or Kimi K3?
Gemini 3.5 Flash-Lite reads more per request: 1.05M tokens against 1M.
What is the difference between Gemini 3.5 Flash-Lite and Kimi K3?
Gemini 3.5 Flash-Lite is made by Google and Kimi K3 by Moonshot AI. A price comparison is not possible: one of them has no comparable published price. Gemini 3.5 Flash-Lite reads more per request: 1.05M tokens against 1M. Only Gemini 3.5 Flash-Lite offers vision, structured output, prompt caching, batch api.