Noometry

Model comparison

Claude Opus 5.5 vs GLM-4.7

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 42.0 on the Noometry Index. GLM-4.7 costs 8.0× less per token, which makes it the better buy when Claude Opus 5.5's lead doesn't matter for your workload.

Last verified . 25 shared benchmarks.

Claude Opus 5.5 Anthropic

68.6

Rank #3 Confirmed

GLM-4.7 Z.ai (Zhipu)

42.0

Rank #124 Confirmed

Summary

  • They share 25 benchmarks with published results for both. Claude Opus 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 reasoning, where Claude Opus 5.5 leads 80.2 to 24.3.
  • The biggest single-benchmark swing is ProofBench: 100% for Claude Opus 5.5 and 6% for GLM-4.7.
  • GLM-4.7 is cheaper at $0.60 / $2.20 per million input/output tokens, against $4 / $20 for Claude Opus 5.5.
  • Claude Opus 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 Opus 5.5GLM-4.7
ProviderAnthropicZ.ai (Zhipu)
Noometry Index68.642.0
Released2026-09-222025-12-22
WeightsProprietaryOpen
Context window1M205K
Max output128K131K
Input $ / M tokens$4$0.60
Output $ / M tokens$20$2.20
Results tracked4436

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.9 (#3), GLM-4.7: 44.0 (#79)

BenchmarkClaude Opus 5.5GLM-4.7
LMArena WebDev18131435
SciCode66.9%45.1%
LMArena Coding15471454
ALE-Bench2,147399.48
FrontierCode54.6%—
CursorBench57.8%—
FrontierSWE62.3%—
MirrorCode77.4%—

Agentic & Tool Use Claude Opus 5.5 leads

Claude Opus 5.5: 45.3 (#15), GLM-4.7: 26.5 (#103)

BenchmarkClaude Opus 5.5GLM-4.7
Vending-Bench 29,2352,377
Terminal-Bench—33.4%
APEX-Agents73.5%—
GDP.pdf30.6%—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 80.2 (#3), GLM-4.7: 24.3 (#164)

BenchmarkClaude Opus 5.5GLM-4.7
CritPt31.7%1.7%
LMArena Hard Prompts15351443
Epoch Capabilities Index167.33143.51
ARC-AGI-293.3%—
SimpleBench—47.7%
NYT Connections (extended)88.5%—
ARC-AGI-198.5%—
Chess Puzzles—6%
EBR-Bench71.4%—
Mystery Game Puzzles71%—
DTBench98.9%—
LMCA68.2%—

Math Claude Opus 5.5 leads

Claude Opus 5.5: 91.8 (#3), GLM-4.7: 38.6 (#135)

BenchmarkClaude Opus 5.5GLM-4.7
OTIS Mock AIME 2024-2025100%83.3%
ProofBench100%6%
LMArena Math15061423
FrontierMath (Tiers 1-3)91.2%—
FrontierMath Tier 495%—
FrontierMath (Feb 2025 set)—2.4%
FrontierMath Erdős2.9%—
FrontierMath Tier 4 (v1)—0%

Knowledge Claude Opus 5.5 leads

Claude Opus 5.5: 66.4 (#10), GLM-4.7: 47.0 (#80)

BenchmarkClaude Opus 5.5GLM-4.7
GPQA Diamond90.6%83.3%
SimpleQA Verified72.2%32.2%
LMArena Expert15471424
Vectara Hallucination Rate—11.7%

Multimodal Not comparable

Claude Opus 5.5: 57.8 (#1), GLM-4.7: —

BenchmarkClaude Opus 5.5GLM-4.7
LMArena Vision1321—
Blueprint-Bench 251.2%—
Furniture Assembly83.3%—

Multilingual Claude Opus 5.5 leads

Claude Opus 5.5: 59.1 (#2), GLM-4.7: 52.8 (#79)

BenchmarkClaude Opus 5.5GLM-4.7
LMArena Non-English15071417
LMArena Chinese15881495
LMArena French15141432
LMArena Russian15201423
LMArena Spanish15071434
LMArena German—1424
LMArena Japanese—1439
LMArena Korean—1399

Instruction Following Claude Opus 5.5 leads

Claude Opus 5.5: 80.0 (#3), GLM-4.7: 74.4 (#95)

BenchmarkClaude Opus 5.5GLM-4.7
LMArena Instruction Following15371411

Long Context Claude Opus 5.5 leads

Claude Opus 5.5: 47.1 (#19), GLM-4.7: 42.8 (#116)

BenchmarkClaude Opus 5.5GLM-4.7
LMArena Longer Query15321432
CL-bench—15.9%
CL-bench Life—10.9%

Writing & Preference Claude Opus 5.5 leads

Claude Opus 5.5: 78.2 (#3), GLM-4.7: 60.9 (#93)

BenchmarkClaude Opus 5.5GLM-4.7
LMArena Text15151435
LMArena Creative Writing15331401
EQ-Bench Creative Writing20501413
LMArena Multi-Turn14991446

Frequently asked questions

Is Claude Opus 5.5 better than GLM-4.7?

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 42.0 on the Noometry Index. GLM-4.7 costs 8.0× less per token, which makes it the better buy when Claude Opus 5.5's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 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 Opus 5.5 lists at $4 and $20.

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

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 44.0 in the Noometry coding category.

Which has the bigger context window?

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

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

25 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and GLM-4.7 has 36.

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