Last refreshed 2026-06-29. Next refresh: weekly.
Why use KAT Coder on Fireworks AI?
Fireworks AI offers KAT Coder with pay-as-you-go pricing at $0.90/1M input tokens. Fireworks AI offers a generative AI platform as a service, focusing on rapid product iteration and cost-efficient AI deployment.
Setup recipe
Python + curlpip install openaiexport FIREWORKS_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],kat-coderRequest example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],
base_url="https://api.fireworks.ai/inference/v1"
)
response = client.chat.completions.create(
model="kat-coder",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Fireworks model IDs use "accounts/fireworks/models/{model-name}" format, e.g. "accounts/fireworks/models/llama4-scout-instruct-basic" or "accounts/fireworks/models/deepseek-r1".
- The examples expect FIREWORKS_API_KEY; rename it only if your application config maps the new variable.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.90 |
| Output tokens | $0.90 |
Capabilities
No model capability flags are currently sourced.
About KAT Coder
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.
FAQ
What does KAT Coder cost on Fireworks AI?
On Fireworks AI, KAT Coder costs $0.9 per 1M input tokens and $0.9 per 1M output tokens.
What is the context window for KAT Coder on Fireworks AI?
KAT Coder supports a 256k token context window on Fireworks AI.
Who created KAT Coder?
KAT Coder was created by Kwaipilot as part of the KAT model family.
Is KAT Coder open source?
KAT Coder is not open source; the seed data lists it as proprietary.