Model comparison
Kimi K2.6 Fast vs Kimi K3
Price history, scores and specs for both models, line by line. Every value shows where it came from and when we last confirmed it.
Moonshotai
Kimi K2.6 Fast
Multimodal Kimi workhorse for agent loops, coding tasks, and visual context.
Moonshotai
Kimi K3
Kimi K3 is an ultra-large-scale, open-weight multimodal reasoning model from Moonshot AI.
Price history
Prices side by side, day by day
- Kimi K2.6 Fast No price history checked yet
- Kimi K3
- Kimi K2.6 Fast No price history checked yet
- Kimi K3
Prices are the listed OpenRouter base rates in US dollars. A day we could not confirm is left out of the line, never filled in.
Price
What each one costs now
| Measure | Kimi K2.6 Fast | Kimi K3 |
|---|---|---|
| Input price | Not checked yet | $0.192 per million tokens |
| Output price | Not checked yet | $15.00 per million tokens |
Scores
Benchmarks, with source and date
| Measure | Kimi K2.6 Fast | Kimi K3 |
|---|---|---|
| Artificial Analysis Intelligence Index | Not checked yet | 17.4 |
| Artificial Analysis Coding Index | Not checked yet | 76.2 |
| Artificial Analysis Agentic Index | Not checked yet | 50 |
| LMArena text rating (Elo) | Not checked yet | 1,476 |
| LMArena web development rating (Elo) | Not checked yet | 1,656 |
| Design Arena rating (Elo) | Not checked yet | 1,381 |
Specs
Context, modalities and tool use
| Measure | Kimi K2.6 Fast | Kimi K3 |
|---|---|---|
| Context window | Not checked yet | 1,048,576 tokens |
| Reads | Not checked yet | Text, Images, Video |
| Writes | Not checked yet | Text |
| Tool calling | Not checked yet | Yes |
| Reasoning mode | Not checked yet | Yes |
| Open weights | Not checked yet | Yes |
| Listed since | Not checked yet | 16 July 2026 |
Usage
How much each one is used
| Measure | Kimi K2.6 Fast | Kimi K3 |
|---|---|---|
| Tokens served on OpenRouter in a day | Not checked yet | 189.8B (for 31 Oct 2026) |
| Requests on OpenRouter in a day | Not checked yet | 4.8M (for 31 Oct 2026) |
| Tool calls on OpenRouter in a day | Not checked yet | 2.1M (for 31 Oct 2026) |
| Token usage, last 7 days | Not checked yet | Down 17% on the week before (for 31 Oct 2026) |
- Kimi K2.6 Fast No usage checked yet
- Kimi K3
How this works
One link, either order
This link stays the same whichever order you name the two models in, so you can share it as it is. A line appears only when at least one model has a value we confirmed from a source; values we have not confirmed are left out, never guessed. To add a third record of any type, use the open comparison. Read how we check facts.