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Data points: 107

On this page

Key TakeawaysComparison sheetBenchmark score comparisonAPI audit comparisonProvider examplesWhen to choose each modelFAQRelated compare reports

Key Takeaways

The readout for Claude Opus 4.6 and GLM-5.1, before the detailed comparison sheet.

Decision read

Tie

Tie currently has the stronger profile, with verified wins split 3 to 3.

Evidence depth

107 data points

Includes 8 benchmark rows, 6 audit samples, and 8 provider examples.

Selection signal

Tie

The charts below split 22 high-signal samples across speed, scores, and audit health.

Model compare

Claude Opus 4.6 vs GLM-5.1

claude-opus-4-6-vs-glm-5-1

Model A

Claude

Claude Opus 4.6

Model B

ChatGLM

GLM-5.1

Overall leaderTieTie
Verified metric wins3 wins3 wins
Where it leadsAverage speed, First-token latency, Provider coverageCheapest input price, Free providers, Recent tests
Model metadataClaude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output.No OpenRouter metadata is available yet for this model.
DeveloperAnthropicZhipu AI
Context window1M tokensNo data
Max output128K tokensNo data
ReleasedApr 2026No data
Modalities

Input

TextImageFile

Output

Text
No data
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
None listed
ParametersNo dataNo data
TokenizerClaudeNo data
Knowledge cutoffNo dataNo data
OpenRouter IDanthropic/claude-opus-4.6-fastNo data
ReferencesNo dataNo data

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Metric
ClaudeClaude Opus 4.6
ChatGLMGLM-5.1
HLE
18.6%#43
28.0%#18
SciCode
45.7%#20
43.8%#26
GPQA
84.0%#38
86.8%#22
Time to first token
1.44 s#57
0.90 s#31
Input price
$5.00/M#41
$1.40/M#32
Output price
$25.00/M#47
$4.40/M#33
Time to first answer token
1.44 s#34
54.31 s#94
Blended price
$10.00/M#68
$2.15/M#53

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider
ClaudeClaude Opus 4.6
ChatGLMGLM-5.1
VSLLMWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

94

View report
76100100100
ChatGLM

GLM-5.1

glm-5.1-free

Audit score

79

View report
678465100
Cuz AIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

89

View report
56100100100
ChatGLM

GLM-5.1

glm-5.1

No audit yet

小水管 APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

84

View report
728480100
ChatGLM

GLM-5.1

glm-5.1

No audit yet

钠 APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

80

View report
668470100
ChatGLM

GLM-5.1

ZhipuAI/GLM-5.1

No audit yet

Omini ApiWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

78

View report
70728088
ChatGLM

GLM-5.1

glm-5.1

No audit yet

RenRen APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

78

View report
70728088
ChatGLM

GLM-5.1

glm-5.1

No audit yet

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider
ClaudeClaude Opus 4.6
ChatGLMGLM-5.1
OptAI25 tests
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

43 tok/s / 2542ms

input / output

$5.00/M / $25.00/M

ChatGLM

GLM-5.1

glm-5.1

speed / latency

N/A / N/A

input / output

$0.0001/M / $0.0001/M

钠 API20 tests
Claude

Claude Opus 4.6

speed / latency

42 tok/s / 2282ms

input / output

No data

ChatGLM

GLM-5.1

speed / latency

N/A / N/A

input / output

No data

OpenRouter15 tests
Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

ChatGLM

GLM-5.1

speed / latency

58 tok/s / 14051ms

input / output

No data

Rnglg2 API15 tests
Claude

Claude Opus 4.6

speed / latency

57 tok/s / 3926ms

input / output

No data

ChatGLM

GLM-5.1

speed / latency

N/A / N/A

input / output

No data

Tokeness15 tests
Claude

Claude Opus 4.6

speed / latency

44 tok/s / 2803ms

input / output

No data

ChatGLM

GLM-5.1

speed / latency

74 tok/s / 6761ms

input / output

No data

Seamee API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$5.00/M / $25.00/M

ChatGLM

GLM-5.1

GLM-5.1

speed / latency

No data

input / output

$0/M / $0/M

小水管 API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0/M / $0/M

ChatGLM

GLM-5.1

glm-5.1-chat

speed / latency

No data

input / output

$0/M / $0/M

我不是AI神
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0/M / $0/M

ChatGLM

GLM-5.1

glm-5.1

speed / latency

No data

input / output

$0/M / $0/M

When to choose each model

This report only uses LMSpeed data for Claude Opus 4.6 and GLM-5.1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude Opus 4.6
ChatGLMGLM-5.1
When to choose each model

Claude Opus 4.6

Claude Opus 4.6 is stronger when you prioritize Average speed, First-token latency, Provider coverage.

GLM-5.1

GLM-5.1 is stronger when you prioritize Cheapest input price, Free providers, Recent tests.

FAQ

TL;DR: Tie leads across 107 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 6 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?
No. Metrics without LMSpeed data are omitted from this report.

Related compare reports

Continue from Claude Opus 4.6 vs GLM-5.1 into nearby model comparisons with enough verified LMSpeed data.

ClaudeClaude Opus 4.6 vs GPT-5.46 verified data pointsClaudeClaude Opus 4.6 vs GPT-56 verified data pointsClaudeClaude Opus 4.6 vs GPT-5.26 verified data pointsClaudeClaude Opus 4.6 vs Gemini 2.5 Pro6 verified data points

Data as of Jun 13, 2026, 02:54 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.