Kimi K2.5 Thinking

Kimi K2.5 with thinking mode enabled. Built on Kimi K2 with ~15T mixed visual and text tokens, it excels at general reasoning, visual coding, and agentic tool-calling. Produces reasoning traces for complex multi-step workflows.

  • Reasoning
  • Vision
  • Tool Calling
  • Parallel Tool Calls

Added Jan 26, 2026

Model weights

Pricing

Auto routing · per 1M tokens
Input
$0.38
Output
$2.00
Cache read
$0.070
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Specifications

Context window
256K
Max output
65.5K
Parameters
1T / 32B
Total / active
Avg output (7d)
1.9K tokens
Longer than 91% of models

Benchmarks

Sourced from Artificial Analysis.

Intelligence Index

23.5

Better than 72% of models compared

Coding Index

46.8

Better than 56% of models compared

Agentic work

T²-Bench Telecom (legacy)

Legacy fallback · Conversational AI agents in dual-control scenarios

95.9%

Better than 96% of models compared

GDPval-AA v2

Economically valuable tasks (Elo)

843 Elo

Better than 38% of models compared

Document reasoning

AA-LCR v1.1

Long context reasoning with updated grading

78.0%

Better than 79% of models compared

Reasoning

HLE

Humanity's Last Exam

30.7%

Better than 79% of models compared

IFBench

Instruction-following benchmark

70.2%

Better than 84% of models compared

CritPt

Research-level physics reasoning

3.1%

Coding

Terminal-Bench Hard (legacy)

Legacy fallback · Agentic coding and terminal use

34.8%

Better than 80% of models compared

Knowledge

AA-Omniscience Accuracy

Proportion of correctly answered questions

35.2%

AA-Omniscience Hallucination Rate

Rate of incorrect answers among non-correct responses

65.7%

Legacy benchmarks

GPQA Diamond (legacy)

Graduate-level scientific reasoning

87.9%

Better than 84% of models compared

AA-LCR (unversioned / legacy)

Long context reasoning evaluation

78.0%

Better than 79% of models compared

GDPval-AA (unversioned / legacy)

Economically valuable tasks

16.2%

Last updated Oct 3, 2026

Artificial Analysis

Providers

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