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Data points: 96

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 GPT-5, before the detailed comparison sheet.

Decision read

Claude Opus 4.6

Claude Opus 4.6 currently has the stronger profile, with verified wins split 4 to 2.

Evidence depth

96 data points

Includes 8 benchmark rows, 3 audit samples, and 9 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 20 high-signal samples across speed, scores, and audit health.

Model compare

Claude Opus 4.6 vs GPT-5

claude-opus-4-6-vs-gpt-5

Model A

Claude

Claude Opus 4.6

Model B

OpenAI

GPT-5

Overall leaderLeadingContender
Verified metric wins4 wins2 wins
Where it leadsFirst-token latency, Free providers, Provider coverage, Recent testsCheapest input price, Average speed
Model metadataClaude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output.GPT-5 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output.
DeveloperAnthropicOpenAI
Context window1M tokens128K tokens
Max output128K tokens16.4K tokens
ReleasedApr 2026Aug 2025
Modalities

Input

TextImageFile

Output

Text

Input

FileImageText

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputImage inputFile inputText outputStructured outputsJSON mode
ParametersNo dataNo data
TokenizerClaudeGPT
Knowledge cutoffNo data2024-09-30
OpenRouter IDanthropic/claude-opus-4.6-fastopenai/gpt-5-chat
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
OpenAIGPT-5
SciCode
45.7%#20
42.9%#31
HLE
18.6%#43
26.5%#24
Input price
$6.25/M#41
$1.25/M#29
GPQA
84.0%#38
85.4%#31
Time to first answer token
1.32 s#33
80.85 s#104
Output price
$25.00/M#46
$10.00/M#40
Output speed
44.9 tok/s#94
95.4 tok/s#51
Time to first token
1.32 s#54
80.85 s#106

API audit comparison

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

Provider
ClaudeClaude Opus 4.6
OpenAIGPT-5
BUZZWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

97

View report
10010010088
OpenAI

GPT-5

gpt-5

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
OpenAI

GPT-5

gpt-5-chat-latest

No audit yet

钠 APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

80

View report
668470100
OpenAI

GPT-5

gpt-5

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
OpenAIGPT-5
V-API20 tests
Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5

speed / latency

95 tok/s / 1234ms

input / output

No data

钠 API20 tests
Claude

Claude Opus 4.6

speed / latency

42 tok/s / 2282ms

input / output

No data

OpenAI

GPT-5

speed / latency

N/A / N/A

input / output

No data

Rnglg2 API15 tests
Claude

Claude Opus 4.6

speed / latency

57 tok/s / 3926ms

input / output

No data

OpenAI

GPT-5

speed / latency

N/A / N/A

input / output

No data

EasyMore10 tests
Claude

Claude Opus 4.6

speed / latency

27 tok/s / 15402ms

input / output

No data

OpenAI

GPT-5

speed / latency

46 tok/s / 6577ms

input / output

No data

ModelPool10 tests
Claude

Claude Opus 4.6

speed / latency

84 tok/s / 3916ms

input / output

No data

OpenAI

GPT-5

speed / latency

N/A / N/A

input / output

No data

Seamee API
Claude

Claude Opus 4.6

claude-opus-4.6

speed / latency

No data

input / output

$0/M / $0/M

OpenAI

GPT-5

gpt-5

speed / latency

No data

input / output

$1.07/M / $8.56/M

小水管 API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0/M / $0/M

OpenAI

GPT-5

gpt-5-chat-latest

speed / latency

No data

input / output

$0/M / $0/M

Crond
Claude

Claude Opus 4.6

c/claude-opus-4-6-thinking

speed / latency

No data

input / output

$0.0017/M / $0.0017/M

OpenAI

GPT-5

gpt-5-chat-latest

speed / latency

No data

input / output

$1.25/M / $10.00/M

10dian-API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0.060/M / $0.060/M

OpenAI

GPT-5

gpt-5

speed / latency

No data

input / output

$0.010/M / $0.010/M

When to choose each model

This report only uses LMSpeed data for Claude Opus 4.6 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude Opus 4.6
OpenAIGPT-5
When to choose each model

Claude Opus 4.6

Claude Opus 4.6 is stronger when you prioritize First-token latency, Free providers, Provider coverage, Recent tests.

GPT-5

GPT-5 is stronger when you prioritize Cheapest input price, Average speed.

FAQ

TL;DR: Claude Opus 4.6 leads across 96 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 GPT-5 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-5.26 verified data pointsClaudeClaude Opus 4.6 vs Gemini 2.5 Pro6 verified data pointsClaudeClaude Opus 4.6 vs Qwen36 verified data points

Data as of Jun 12, 2026, 12:00 AM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.