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Data points: 56

On this page

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

Key Takeaways

The readout for ChatGPT-4o and Claude Opus 4.6, before the detailed comparison sheet.

Decision read

Claude Opus 4.6

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

Evidence depth

56 data points

Includes 0 benchmark rows, 0 audit samples, and 10 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 10 high-signal samples across speed, scores, and audit health.

Model compare

ChatGPT-4o vs Claude Opus 4.6

chatgpt-4o-vs-claude-opus-4-6

Model A

OpenAI

ChatGPT-4o

Model B

Claude

Claude Opus 4.6

Overall leaderContenderLeading
Verified metric wins2 wins4 wins
Where it leadsAverage speed, First-token latencyCheapest input price, Free providers, Provider coverage, Recent tests
Model metadataNo OpenRouter metadata is available yet for this model.Claude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output.
DeveloperOpenAIAnthropic
Context windowNo data1M tokens
Max outputNo data128K tokens
ReleasedNo dataApr 2026
ModalitiesNo data

Input

TextImageFile

Output

Text
FeaturesNone listed
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
ParametersNo dataNo data
TokenizerNo dataClaude
Knowledge cutoffNo dataNo data
OpenRouter IDNo dataanthropic/claude-opus-4.6-fast
ReferencesNo dataNo data

Benchmark score comparison

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

Metric
OpenAIChatGPT-4o
ClaudeClaude Opus 4.6
No shared benchmark metrics are available yet.

API audit comparison

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

Provider
OpenAIChatGPT-4o
ClaudeClaude Opus 4.6
No completed audits are available from shared providers yet.

Provider examples

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

Provider
OpenAIChatGPT-4o
ClaudeClaude Opus 4.6
毫秒API2 tests
OpenAI

ChatGPT-4o

speed / latency

101 tok/s / 3469ms

input / output

No data

Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

42公益站0 tests
OpenAI

ChatGPT-4o

speed / latency

N/A / N/A

input / output

No data

Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

AAAI0 tests
OpenAI

ChatGPT-4o

speed / latency

N/A / N/A

input / output

No data

Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

AASS API0 tests
OpenAI

ChatGPT-4o

speed / latency

N/A / N/A

input / output

No data

Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

AIGCBAR0 tests
OpenAI

ChatGPT-4o

speed / latency

N/A / N/A

input / output

No data

Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

小豆包API
OpenAI

ChatGPT-4o

chatgpt-4o-latest

speed / latency

No data

input / output

$0.012/M / $0.012/M

Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$1.03/M / $5.14/M

神马中转API
OpenAI

ChatGPT-4o

chatgpt-4o-latest

speed / latency

No data

input / output

$0.016/M / $0.016/M

Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$1.37/M / $6.85/M

KKSJ-AI
OpenAI

ChatGPT-4o

chatgpt-4o-latest

speed / latency

No data

input / output

$0.616/M / $1.85/M

Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$9.25/M / $46.23/M

DreamChatBot
OpenAI

ChatGPT-4o

chatgpt-4o-latest

speed / latency

No data

input / output

$0.685/M / $2.05/M

Claude

Claude Opus 4.6

claude-opus-4-6-20260508

speed / latency

No data

input / output

$10.27/M / $51.37/M

GPTPlus5 API
OpenAI

ChatGPT-4o

chatgpt-4o-latest

speed / latency

No data

input / output

$0.685/M / $2.05/M

Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$1.64/M / $8.22/M

When to choose each model

This report only uses LMSpeed data for ChatGPT-4o and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
OpenAIChatGPT-4o
ClaudeClaude Opus 4.6
When to choose each model

ChatGPT-4o

ChatGPT-4o is stronger when you prioritize Average speed, First-token latency.

Claude Opus 4.6

Claude Opus 4.6 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests.

FAQ

TL;DR: Claude Opus 4.6 leads across 56 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 ChatGPT-4o vs Claude Opus 4.6 into nearby model comparisons with enough verified LMSpeed data.

OpenAIChatGPT-4o vs GPT-5.46 verified data pointsOpenAIChatGPT-4o vs GPT-56 verified data pointsOpenAIChatGPT-4o vs GPT-5.26 verified data pointsOpenAIChatGPT-4o 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.