KAT-Coder-Pro V2.5: Specifications & Sources

Specifications and access

Specification	Value and source
Weights	ProprietarySource
Access	APISource
Context window	256,000 tokensSource
Notes	Current KAT-Coder Pro serving tier with a 256K context window; parameter count is not published.Source
Release	2026-07-10Source
Maximum output	80,000 tokensSource
API model ID	kat-coder-pro-v2.5Source
Tool calling	YesSource

Measurements without matching peer values

These measurements have no matching peer values under the same test conditions. Their original values and sources remain available here.

SWE-Bench Pro (Show measurement, test conditions, and source)

Source value: 65.2
Score: 65.2
Metric: percent
Unit: %
Category: coding
Direction: Higher is better
Source type: vendor-reported
Evaluator: Vercel AI Gateway KAT-Coder-Pro V2.5 page
Status: active
Retrieved at: 2026-09-08
Methodology: Vendor-reported result. Vendor card; exact harness, snapshot and pass protocol not stated.

Source Vercel AI Gateway KAT-Coder-Pro V2.5 page

PinchBench (Show measurement, test conditions, and source)

Source value: 94.9
Score: 94.9
Metric: percent
Unit: %
Category: agentic
Direction: Higher is better
Source type: vendor-reported
Evaluator: Vercel AI Gateway KAT-Coder-Pro V2.5 page
Status: active
Retrieved at: 2026-09-08
Methodology: Vendor-reported result. Vendor card; exact harness, snapshot and pass protocol not stated.

Source Vercel AI Gateway KAT-Coder-Pro V2.5 page

Artificial Analysis Intelligence Index (Show measurement, test conditions, and source)

Source value: 21.7045082420985
Score: 21.7045082420985
Metric: points
Unit: points
Direction: Higher is better
Source type: independent-evaluator
Evaluator: Artificial Analysis
Status: active
Retrieved at: 2026-09-08
Methodology: Independent evaluation. unknown

Source Artificial Analysis

AA-Omniscience Index (Show measurement, test conditions, and source)

Source value: -22.4666666666667
Score: -22.4666666666667
Metric: points
Unit: points
Direction: Higher is better
Source type: independent-evaluator
Evaluator: Artificial Analysis
Status: active
Retrieved at: 2026-09-08
Methodology: Independent evaluation. unknown

Source Artificial Analysis

Our tests

Each test shows the latest attempt, with no subsequent fixes to the generated code. Earlier runs remain available in the test details. These results do not contribute to an overall score.

Pelican on a bicycle

A community classic for free-form SVG drawing.

KAT-Coder-Pro V2.5

API request failed

Reasoning (requested): not specified

Current attempt

Run date: 2 Oct 2026
API provider: openrouter
Requested API model: kwaipilot/kat-coder-pro-v2.5
Reasoning setting: not specified
Pinned endpoint: AtlasCloud | kwaipilot/kat-coder-pro-v2.5-20260710
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Failed

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

Earlier attempts (1)

1 Oct 2026API request failedReasoning setting: not specified

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

Popularity

37.3 / 100

Published prices

Hosting-market price: the median of 1 OpenRouter endpoints from 1 providers (representative: AtlasCloud), observed on October 7, 2026. Cache prices differ by provider and are not shown.

API input: $0.74 per 1M tokensSource
API output: $2.96 per 1M tokensSource
Cache read: $0.15 per 1M tokensSource

Sources and data date

Type	Evidence and data date
Price	Base API prices without caching or batch discounts. Higher context tiers and other rates are listed under Costs. Source: Pricing · Model metadata · KAT-Coder Pro V2.5 provider page · Editorial description reviewed October 2, 2026
Research status	Research date September 8, 2026. 4 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication.
Not found in the inspected sources	total-parameters-billions Original wording No parameter count is published for the proprietary Pro endpoint in the checked exact-model pages.
Not found in the inspected sources	active-parameters-billions Original wording No active-parameter count is published for the proprietary Pro endpoint.
Not found in the inspected sources	architecture Original wording Architecture details are not disclosed on the checked exact-model pages.
Not found in the inspected sources	license Original wording No model-weight license is published; the endpoint is presented as a proprietary provider model.
Not found in the inspected sources	knowledge-cutoff Original wording No knowledge-cutoff date is published on the checked exact-model pages.
Additional source	Vercel AI Gateway KAT-Coder-Pro V2.5 page (retrieved September 8, 2026)
Additional source	Artificial Analysis (retrieved September 8, 2026)
Additional source	KAT-Coder technical report · Editorial description reviewed October 2, 2026
Additional source	StreamLake KwaiKAT integration guide · Editorial description reviewed October 2, 2026
Additional source	OpenRouter: Popularity index (derived), CC BY 4.0
Additional source	Vercel AI Gateway: Popularity index (derived), CC BY 4.0
Additional source	Creative Commons Attribution 4.0