KAT Coder
KAT Coder is worth evaluating for coding and long context when its provider route and context window match the workload.
Use it for
- Teams evaluating coding and long context
- Workloads that can use a 256k context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Vision or document-understanding workloads
- Strict JSON or tool-calling flows
- Family
- KAT
- Released
- 2025-09-01
- Context
- 256k
- Architecture
- Decoder Only
- Specialization
- code
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Training
- Pretrained
Cheapest of 1 route · Fireworks AI
About
KAT Coder is the original proprietary coding model from Kwaipilot (Kuaishou's AI4SE division), achieving 73.4% on SWE-Bench Verified. It is available via Fireworks AI and was later succeeded by the KAT-Coder-Pro series. Context: 256K tokens.
KAT Coder is a proprietary model in the KAT family. The structured metadata tracks a 256k-token context window. This page tracks provider routes through Fireworks AI, with the cheapest tracked route listed at $0.9 input and $0.9 output per 1M tokens. No headline benchmark score is tracked for KAT Coder yet.
Top use-case fit: coding, agents, and build tasks
Coding
Included by capability and metadata signals in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| Fireworks AI | $0.900 | $0.900 | Serverless |
Available via routers & gateways(1)
Capabilities
No model capability flags are currently sourced.
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
Frequently asked questions
What is the context window of KAT Coder?
KAT Coder has a context window of 256k tokens.
How much does KAT Coder cost?
KAT Coder is available at $0.9/1M input tokens through Fireworks AI.
When was KAT Coder released?
KAT Coder was released on 2025-09-01.
Which providers offer KAT Coder?
KAT Coder is available from 1 provider: Fireworks AI.
Cheapest of 1 route · Fireworks AI