Noometry

Model comparison

Claude Sonnet 5.5 vs GLM-4.7

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 42.0 on the Noometry Index. GLM-4.7 costs 4.0× less per token, which makes it the better buy when Claude Sonnet 5.5's lead doesn't matter for your workload.

Last verified . 21 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

GLM-4.7 Z.ai (Zhipu)

42.0

Rank #124 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 9 categories and GLM-4.7 in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5.5 leads 87.9 to 38.6.
  • The biggest single-benchmark swing is ProofBench: 100% for Claude Sonnet 5.5 and 6% for GLM-4.7.
  • GLM-4.7 is cheaper at $0.60 / $2.20 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.5.
  • Claude Sonnet 5.5 accepts more context: 1M tokens versus 205K.
  • GLM-4.7 has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5GLM-4.7
ProviderAnthropicZ.ai (Zhipu)
Noometry Index61.942.0
Released2026-09-282025-12-22
WeightsProprietaryOpen
Context window1M205K
Max output128K131K
Input $ / M tokens$2$0.60
Output $ / M tokens$10$2.20
Results tracked3236

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), GLM-4.7: 44.0 (#79)

BenchmarkClaude Sonnet 5.5GLM-4.7
LMArena WebDev17741435
SciCode61%45.1%
LMArena Coding15131454
ALE-Bench1,819399.48
FrontierCode52.1%—
CursorBench55.5%—
FrontierSWE61.9%—

Agentic & Tool Use Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.0 (#16), GLM-4.7: 26.5 (#103)

BenchmarkClaude Sonnet 5.5GLM-4.7
Terminal-Bench—33.4%
APEX-Agents75.5%—
Vending-Bench 2—2,377

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), GLM-4.7: 24.3 (#164)

BenchmarkClaude Sonnet 5.5GLM-4.7
CritPt31.4%1.7%
LMArena Hard Prompts14951443
Epoch Capabilities Index165.03143.51
SimpleBench—47.7%
NYT Connections (extended)80.5%—
Chess Puzzles—6%
Mystery Game Puzzles65%—

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), GLM-4.7: 38.6 (#135)

BenchmarkClaude Sonnet 5.5GLM-4.7
OTIS Mock AIME 2024-2025100%83.3%
ProofBench100%6%
LMArena Math15101423
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
FrontierMath (Feb 2025 set)—2.4%
FrontierMath Erdős2.9%—
FrontierMath Tier 4 (v1)—0%

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), GLM-4.7: 47.0 (#80)

BenchmarkClaude Sonnet 5.5GLM-4.7
GPQA Diamond95.6%83.3%
SimpleQA Verified46.5%32.2%
LMArena Expert15401424
Vectara Hallucination Rate—11.7%

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), GLM-4.7: —

BenchmarkClaude Sonnet 5.5GLM-4.7
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), GLM-4.7: 52.8 (#79)

BenchmarkClaude Sonnet 5.5GLM-4.7
LMArena Non-English14521417
LMArena Chinese15221495
LMArena Russian14511423
LMArena French—1432
LMArena German—1424
LMArena Japanese—1439
LMArena Korean—1399
LMArena Spanish—1434

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), GLM-4.7: 74.4 (#95)

BenchmarkClaude Sonnet 5.5GLM-4.7
LMArena Instruction Following14951411

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), GLM-4.7: 42.8 (#116)

BenchmarkClaude Sonnet 5.5GLM-4.7
LMArena Longer Query14981432
CL-bench—15.9%
CL-bench Life—10.9%

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), GLM-4.7: 60.9 (#93)

BenchmarkClaude Sonnet 5.5GLM-4.7
LMArena Text14711435
LMArena Creative Writing14651401
LMArena Multi-Turn14741446
EQ-Bench Creative Writing—1413

Frequently asked questions

Is Claude Sonnet 5.5 better than GLM-4.7?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 42.0 on the Noometry Index. GLM-4.7 costs 4.0× less per token, which makes it the better buy when Claude Sonnet 5.5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 5.5 or GLM-4.7?

GLM-4.7 is cheaper. It lists at $0.60 per million input tokens and $2.20 per million output tokens; Claude Sonnet 5.5 lists at $2 and $10.

Is Claude Sonnet 5.5 or GLM-4.7 better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 44.0 in the Noometry coding category.

Which has the bigger context window?

Claude Sonnet 5.5 does, with 1M tokens against 205K.

How many benchmarks do Claude Sonnet 5.5 and GLM-4.7 share?

21 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and GLM-4.7 has 36.

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