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  1. Home
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  3. Compare

KAT-Coder-Pro V1 vs Step3

Compare KAT-Coder-Pro V1 from kwaipilot and Step3 from stepfun-ai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for kwaipilot
KAT-Coder-Pro V1
Favicon for stepfun-ai
Step3
Favicon for kwaipilot
KAT-Coder-Pro V1
Favicon for stepfun-ai
Step3

Overview

KAT-Coder-Pro V1
Author
kwaipilot
Step3
Author
stepfun-ai
KAT-Coder-Pro V1
Context length
262Ktokens
Step3
Context length
66Ktokens
KAT-Coder-Pro V1
Reasoning
Step3
Reasoning
KAT-Coder-Pro V1
Input modalities
Step3
Input modalities
KAT-Coder-Pro V1
Output modalities
Step3
Output modalities

KAT-Coder-Pro V1 vs Step3: side-by-side summary

KAT-Coder-Pro V1 and Step3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

KAT-Coder-Pro V1, from kwaipilot, has a 262,144-token context window and is priced by the provider serving it on OpenRouter.

Step3, from stepfun-ai, has a 65,536-token context window and is priced by the provider serving it on OpenRouter.

Context window
  • KAT-Coder-Pro V1: 262,144 tokens
  • Step3: 65,536 tokens
Price
  • KAT-Coder-Pro V1: Pricing varies by provider
  • Step3: Pricing varies by provider
Provided by
  • KAT-Coder-Pro V1: kwaipilot
  • Step3: stepfun-ai
  • KAT-Coder-Pro V1 model details, providers and pricing
  • Step3 model details, providers and pricing

KAT-Coder-Pro V1 vs Step3 at a glance

KAT-Coder-Pro V1 vs Step3 comparison
AttributeKAT-Coder-Pro V1Step3
Input pricePricing varies by providerPricing varies by provider
Output pricePricing varies by providerPricing varies by provider
Context window262,144 tokens65,536 tokens
Intelligence Index18.6Not available
Coding IndexNot availableNot available
Agentic IndexNot availableNot available
Latency (p50)Not availableNot available
Throughput (p50)Not availableNot available

Benchmark data updated Oct 15, 2026

Frequently asked questions

Which has the longer context window, KAT-Coder-Pro V1 or Step3?

KAT-Coder-Pro V1 has the longer context window at 262,144 tokens, compared with 65,536 tokens for Step3.