Calculate the cost of using kimi-k3-fast from Fireworks AI for your AI applications
Pricing data last updated:
Mode: Chat
Max: 1,048,576 tokens
Max: 131,072 tokens
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kimi-k3-fast is a chat model from Fireworks AI, one of 299 chat models they offer. It is priced at $4.50 per 1M input tokens and $22.50 per 1M output tokens, ranking 3292 out of 3639 chat models by cost and cheaper than 9% of models in this category. kimi-k3-fast supports vision, function calling, reasoning, prompt caching, structured output. Its 1,049K-token context window is in the top 12% among chat models.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 1,048,576 input tokens. The maximum output length is 131,072 tokens.
At $4.50 per 1M input tokens and $22.50 per 1M output tokens, kimi-k3-fast ranks 3292 out of 3639 chat models by input cost. It is more expensive compared to the median of $0.58 for chat models, and is cheaper than 9% of models in this category.
kimi-k3-fast is one of 299 Fireworks AI chat models, with support for vision, function calling, reasoning, prompt caching, structured output. its 1,049K-token context window places it in the top 12% of chat models.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs kimi-k3-fast |
|---|---|---|---|---|
| anthropic.claude-opus-4-5-20251101-v1:0 | AWS Bedrock | $5.00 | $25.00 | +11% |
| anthropic.claude-opus-4-6-v1 | AWS Bedrock | $5.00 | $25.00 | +11% |
| global.anthropic.claude-opus-4-6-v1 | AWS Bedrock | $5.00 | $25.00 | +11% |
Similar chat models from other providers
Yes. kimi-k3-fast costs $4.50 per 1M input tokens compared to anthropic.claude-opus-4-5-20251101-v1:0's $5.00 per 1M input tokens, making it 11% more affordable. Both are chat models and share support for vision, function calling, reasoning, prompt caching, structured output.
kimi-k3-fast input pricing is $4.50 per 1M tokens, which is 676% above the median of $0.58 for chat models. It ranks 3292 out of 3639 chat models by input cost, making it cheaper than 9% of models in this category. For output, it costs $22.50 per 1M tokens compared to the median of $1.66.
Among Fireworks AI's 299 chat models, kimi-k3-fast ranks 298 by input cost.
The most comparable chat models to kimi-k3-fast are: anthropic.claude-opus-4-5-20251101-v1:0 from AWS Bedrock ($5.00/1M input tokens); anthropic.claude-opus-4-6-v1 from AWS Bedrock ($5.00/1M input tokens); global.anthropic.claude-opus-4-6-v1 from AWS Bedrock ($5.00/1M input tokens); us.anthropic.claude-opus-4-6-v1 from AWS Bedrock ($5.50/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
kimi-k3-fast supports up to 1,048,576 input tokens, placing it in the top 12% of chat models by context window size (rank 235 of 3346). This makes it suitable for processing long documents, extensive code repositories, or maintaining detailed conversation histories.
You can monitor Fireworks AI service health in real time on the Bifrost Fireworks AI Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.
kimi-k3-fast is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $4.50 and generating 1M output tokens costs $22.50.