Kimi K2.6 vs Gemini 3.1 Pro Preview: price, context window and capabilities
Kimi K2.6 (moonshotai/kimi-k2.6) from MoonshotAI and Gemini 3.1 Pro Preview (google/gemini-3.1-pro-preview) from Google are both multimodal language models on the OceanToken API. Kimi K2.6 costs less per token than Gemini 3.1 Pro Preview: $0.95 against $1.80 per 1M input tokens (47% less) and $4.00 against $10.80 per 1M output tokens (63% less). Gemini 3.1 Pro Preview is 10% off its official price on OceanToken, for every account. Gemini 3.1 Pro Preview has the larger context window: 1.05M tokens (1,048,576) against 262K (262,144) for Kimi K2.6. Both support tool calling, reasoning, structured outputs and image input; only Gemini 3.1 Pro Preview also lists file input, audio input and video input.
Side by side
| Spec | Kimi K2.6 | Gemini 3.1 Pro Preview −10% |
|---|---|---|
| Model | Kimi K2.6moonshotai/ | Gemini 3.1 Pro Previewgoogle/ |
| Publisher | MoonshotAI | |
| Kind | Text & vision | Text, vision, audio & video |
| Context window | 262K tokens262,144 | 1.05M tokens1,048,576 |
| Input price | $0.95 / 1M tokens | $1.80 / 1M tokens |
| Output price | $4.00 / 1M tokens | $10.80 / 1M tokens |
| Cached input price | $0.16 / 1M tokens | $0.20 / 1M tokens |
| Cache write price | – | $2.375 / 1M tokens |
| Web search price | – | $0.014 / search |
| Discount (vs official, top tier) | — | −10% |
| Inputs | text and images | text, images, files, audio and video |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose Kimi K2.6 to spend less per token: 47% less for input and 63% less for output than Gemini 3.1 Pro Preview.
- Choose Gemini 3.1 Pro Preview for the longest inputs: its context window holds 1.05M tokens against 262K for Kimi K2.6.
- Choose Gemini 3.1 Pro Preview if you need file input, audio input and video input: Kimi K2.6 does not list them.
- Not sure? Call both with the same OceanToken API key and compare them on your own prompts; each request is billed per use from one prepaid balance.
Get API Key Kimi K2.6 Gemini 3.1 Pro Preview
Frequently asked questions
Which is cheaper, Kimi K2.6 or Gemini 3.1 Pro Preview?
Kimi K2.6. Kimi K2.6 costs less per token than Gemini 3.1 Pro Preview: $0.95 against $1.80 per 1M input tokens (47% less) and $4.00 against $10.80 per 1M output tokens (63% less). Gemini 3.1 Pro Preview is 10% off its official price on OceanToken, for every account. The OceanToken console always shows the current price.
Which has the larger context window, Kimi K2.6 or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview. Gemini 3.1 Pro Preview has the larger context window: 1.05M tokens (1,048,576) against 262K (262,144) for Kimi K2.6.
Can I call both Kimi K2.6 and Gemini 3.1 Pro Preview with one API key?
Yes. Both are on the OceanToken API at https://api.oceantoken.ai/v1: one API key and one prepaid balance call either model. Send the model id moonshotai/kimi-k2.6 or google/gemini-3.1-pro-preview.
Models and publishers
Kimi K2.6 · Gemini 3.1 Pro Preview · All MoonshotAI models · All Google models
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