Text model
kimi-k3-fast pricing
Fireworks AI charges $4.50 per million input tokens and $22.50 per million output tokens for kimi-k3-fast, and $0.45 for cached input. Below: every rate that applies, what common workloads cost, and cheaper options.
- Input
- $4.50/ 1M
- Output
- $22.50/ 1M
- Cached input
- $0.45/ 1M
- Context
- 1Mtokens
All rates
| Tier | Input | Output | Cache read | Cache write |
|---|---|---|---|---|
| Standard | $4.50 | $22.50 | $0.45 | — |
USD per million tokens. Long-context tiers apply when the whole prompt, cached tokens included, passes the threshold.
Work it out
What common workloads cost
| Workload | Per call | Cost per call | Calls a month | Per month |
|---|---|---|---|---|
| Chat reply | 1,500 input and 400 output tokens | $0.02 | 100,000 | $1,575.00 |
| RAG answer, cached context | 2,000 fresh + 4,000 cached input, 500 output | $0.02 | 100,000 | $2,205.00 |
| Agent step | 4,000 fresh + 8,000 cached input, 800 output | $0.04 | 250,000 | $9,900.00 |
| Batch summary | 3,000 input and 300 output tokens via the Batch API | — | 1,000,000 | — |
Planning a mix of models? Simulate a workload with kimi-k3-fast, alongside anything else you run.
Cheaper options
Current models that cost at least 15% less for a typical chat reply. Cheaper isn't always equivalent: test quality on your own prompts, then use veqen diff to see the impact at your volume.
| Model | Chat reply | Saving |
|---|---|---|
| fireworks/accounts/fireworks/models/ember-1 | $0.01 | 33% |
| fireworks/accounts/fireworks/models/kimi-k3 | $0.01 | 33% |
| bedrock/anthropic.claude-sonnet-4-5-20250929-v1:0 | $0.01 | 20% |
| bedrock/in.moonshotai.kimi-k3 | $0.01 | 27% |
Price history
No price changes since Veqen started tracking this model.
Compare
Last verified with price book 2026-10-22. Sources: Fireworks AI pricing and LiteLLM's MIT-licensed price file. Track every call to this model, per customer or project: install the SDK.