MoonshotAI: Kimi K2 0905 API Pricing
MoonshotAI: Kimi K2 0905 costs $0.600 per 1M input tokens and $2.50 per 1M output tokens. Context window: 262K. Prices verified 2026-10-21 · source
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What would MoonshotAI: Kimi K2 0905 cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $14.80 |
| Coding agent | 5,000 | 8,000 / 2,000 | $49.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $109.50 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $29.00 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About MoonshotAI: Kimi K2 0905
Kimi K2 0905 is the September update of [Kimi K2 0711](moonshotai/kimi-k2). It is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32...
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Frequently asked questions
How much does MoonshotAI: Kimi K2 0905 cost?
MoonshotAI: Kimi K2 0905 costs $0.600 per 1M input tokens and $2.50 per 1M output tokens. Verified 2026-10-21 — provider source.
What is the context window?
262K tokens, with up to 98K output tokens per response. That's roughly 328 pages of text in a single request.
Does it support prompt caching?
Prompt-caching pricing is not published for this model via OpenRouter.
What's a cheaper alternative?
ScaleDown: Summarize saves about 98% on a typical workload with comparable quality.
Official resources
- MoonshotAI: Kimi K2 0905 on OpenRouter — live endpoint, pricing source of record.
- Artificial Analysis leaderboard → — independent intelligence and performance rankings.
- Shred your current bill — paste a CSV and see if switching saves money.