Model comparison

GLM-4.6 vs Kimi K2.5

Kimi K2.5 is the stronger model overall, scoring 47.8 to 40.9 on the Noometry Index.

Last verified . 28 shared benchmarks.

GLM-4.6 Z.ai (Zhipu)

40.9

Rank #132 Confirmed

Kimi K2.5 Moonshot AI

47.8

Rank #50 Confirmed

Summary

  • They share 28 benchmarks with published results for both. GLM-4.6 scores higher in 0 categories and Kimi K2.5 in 9 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Kimi K2.5 leads 53.6 to 39.6.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 47.4% for GLM-4.6 and 78.5% for Kimi K2.5.
  • Kimi K2.5 is cheaper at $0.45 / $2.25 per million input/output tokens, against $0.60 / $2.20 for GLM-4.6.
  • Kimi K2.5 accepts more context: 262K tokens versus 205K.

Side by side

GLM-4.6 and Kimi K2.5 specifications
GLM-4.6Kimi K2.5
ProviderZ.ai (Zhipu)Moonshot AI
Noometry Index40.947.8
Released2025-09-302026-01-27
WeightsOpenOpen
Context window205K262K
Max output131K262K
Input $ / M tokens$0.60$0.45
Output $ / M tokens$2.20$2.25
Results tracked2951

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Category by category

Coding Kimi K2.5 leads

GLM-4.6: 39.9 (#137), Kimi K2.5: 48.7 (#48)

Coding benchmarks
BenchmarkGLM-4.6Kimi K2.5
SWE-bench Verified (bash only)55.4%70.8%
LMArena WebDev13391436
SciCode38.4%49%
LMArena Coding14491474
ALE-Bench340.82821.65
SWE-bench Verified—73.8%
SWE-bench Multilingual—67.3%
WeirdML—45.6%

Agentic & Tool Use Kimi K2.5 leads

GLM-4.6: 32.1 (#60), Kimi K2.5: 34.0 (#44)

Agentic & Tool Use benchmarks
BenchmarkGLM-4.6Kimi K2.5
Terminal-Bench24.5%43.2%
Berkeley Function Calling Leaderboard72.4%—
OSWorld—63.3%
Vending-Bench 2—1,198

Reasoning Kimi K2.5 leads

GLM-4.6: 23.1 (#168), Kimi K2.5: 31.2 (#74)

Reasoning benchmarks
BenchmarkGLM-4.6Kimi K2.5
Kagi LLM Benchmark47.4%78.5%
CritPt1.1%3.1%
LMArena Hard Prompts14401454
ARC-AGI-2—11.8%
SimpleBench—46.8%
NYT Connections (extended)—69.9%
ARC-AGI-1—65.3%
Chess Puzzles—12%
EnigmaEval—3.4%
Thematic Generalization—69.4%
Epoch Capabilities Index—148.05

Math Kimi K2.5 leads

GLM-4.6: 36.4 (#115), Kimi K2.5: 50.3 (#46)

Knowledge Kimi K2.5 leads

GLM-4.6: 39.6 (#118), Kimi K2.5: 53.6 (#52)

Knowledge benchmarks
BenchmarkGLM-4.6Kimi K2.5
Vectara Hallucination Rate9.5%14.2%
LMArena Expert14321466
GPQA Diamond—87.6%
Humanity's Last Exam—24.4%
SimpleQA Verified—34.3%

Multimodal Not comparable

GLM-4.6: —, Kimi K2.5: 40.4 (#37)

Multimodal benchmarks
BenchmarkGLM-4.6Kimi K2.5
LMArena Vision—1269
LMArena Document—1430

Multilingual Too close to call

GLM-4.6: 53.6 (#62), Kimi K2.5: 54.1 (#50)

Multilingual benchmarks
BenchmarkGLM-4.6Kimi K2.5
LMArena Non-English14261433
LMArena Chinese15001495
LMArena French14591454
LMArena German14471441
LMArena Japanese13941422
LMArena Korean14011412
LMArena Russian14181436
LMArena Spanish14361450

Instruction Following Kimi K2.5 leads

GLM-4.6: 74.5 (#93), Kimi K2.5: 75.5 (#60)

Instruction Following benchmarks
BenchmarkGLM-4.6Kimi K2.5
LMArena Instruction Following14101431

Long Context Kimi K2.5 leads

GLM-4.6: 43.4 (#91), Kimi K2.5: 52.1 (#7)

Long Context benchmarks
BenchmarkGLM-4.6Kimi K2.5
LMArena Longer Query14231445
Fiction.LiveBench—86.1%
CL-bench—19.3%
CL-bench Life—13.2%

Writing & Preference Kimi K2.5 leads

GLM-4.6: 61.3 (#86), Kimi K2.5: 65.3 (#51)

Writing & Preference benchmarks
BenchmarkGLM-4.6Kimi K2.5
LMArena Text14401445
LMArena Creative Writing14111423
EQ-Bench Creative Writing14111579
LMArena Multi-Turn14271444

Frequently asked questions

Is GLM-4.6 better than Kimi K2.5?

Kimi K2.5 is the stronger model overall, scoring 47.8 to 40.9 on the Noometry Index.

Which is cheaper, GLM-4.6 or Kimi K2.5?

Kimi K2.5 is cheaper. It lists at $0.45 per million input tokens and $2.25 per million output tokens; GLM-4.6 lists at $0.60 and $2.20.

Is GLM-4.6 or Kimi K2.5 better for coding?

Kimi K2.5 scores higher on coding benchmarks: 48.7 versus 39.9 in the Noometry coding category.

Which has the bigger context window?

Kimi K2.5 does, with 262K tokens against 205K.

How many benchmarks do GLM-4.6 and Kimi K2.5 share?

28 benchmarks have published results for both models. GLM-4.6 has 29 scored results on Noometry and Kimi K2.5 has 51.

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