Is KAT-Coder-Pro V1 available on FastMetal?

Not at the moment. GLM 5.3 Flash, from the same lab, is available on the FastMetal API today.

What is the context window of KAT-Coder-Pro V1?

256,000 tokens, shared between the prompt and the response.

How does KAT-Coder-Pro V1 rank?

#136 on the public arena's Overall board (ELO 1,256). Ranks move as the leaderboard is updated.

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Kwaipilot

kwaipilot/kat-coder-pro

Not Available

KAT-Coder-Pro V1

KAT-Coder-Pro V1 is KwaiKAT's most advanced agentic coding model in the KAT-Coder series. Designed specifically for agentic coding tasks, it excels in real-world software engineering scenarios, achieving 73.4% solve rate on the SWE-Bench Verified benchmark. The model has been optimized for tool-use capability, multi-turn interaction, instruction following, generalization, and comprehensive capabilities through a multi-stage training process, including mid-training, supervised fine-tuning (SFT), reinforcement fine-tuning (RFT), and scalable agentic RL.

11/10/2025

256,000 tokens

#136 Code (Overall)

Specifications

Modalities

Input

text

Output

text

Supported Parameters

frequency_penalty

max_tokens

presence_penalty

repetition_penalty

response_format

seed

stop

structured_outputs

temperature

tool_choice

tools

top_k

top_p

Max Output Tokens

128,000

Data policy

Prompt retention: Unknown — we could not confirm
Training: Unknown — not declared

"Unknown" does not mean "safe". It means we could not confirm it.

Whether a provider trains on prompts is a declared value from our terms with them. Retention is determined from the upstream listing for every host this model can reach. Neither is guessed.

Frequently asked questions

Is KAT-Coder-Pro V1 available on FastMetal?: Not at the moment. GLM 5.3 Flash, from the same lab, is available on the FastMetal API today.
What is the context window of KAT-Coder-Pro V1?: 256,000 tokens, shared between the prompt and the response.
How does KAT-Coder-Pro V1 rank?: #136 on the public arena's Overall board (ELO 1,256). Ranks move as the leaderboard is updated.

Leaderboard

Code

OverallELO: 1,256

#136

Rankings: LMArena leaderboard dataset (lmarena-ai/leaderboard-dataset), CC BY 4.0, snapshot 2026-10-23; category names mapped and ratings rounded by FastMetal.

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