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Back to models

Data points: 68

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-5.4 Pro, 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 0.

Evidence depth

68 data points

Includes 3 benchmark rows, 0 audit samples, and 8 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 11 high-signal samples across speed, scores, and audit health.

Model compare

Claude Opus 4.6 vs GPT-5.4 Pro

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

Model A

Claude

Claude Opus 4.6

Model B

OpenAI

GPT-5.4 Pro

Overall leaderLeadingContender
Verified metric wins4 wins0 wins
Where it leadsCheapest input price, Free providers, Provider coverage, Recent tests

Benchmark score comparison

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

Metric
ClaudeClaude Opus 4.6
OpenAIGPT-5.4 Pro
Input price
$5.00/M#41

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-5.4 Pro
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
ClaudeClaude Opus 4.6
OpenAIGPT-5.4 Pro
10 tests
Claude

Claude Opus 4.6

speed / latency

51 tok/s / 9040ms

input / output

No data

OpenAI

When to choose each model

This report only uses LMSpeed data for Claude Opus 4.6 and GPT-5.4 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude Opus 4.6
OpenAIGPT-5.4 Pro
When to choose each model

Claude Opus 4.6

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

GPT-5.4 Pro

GPT-5.4 Pro does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing.

FAQ

TL;DR: Claude Opus 4.6 leads across 68 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 4 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-5.4 Pro into nearby model comparisons with enough verified LMSpeed data.

No data
Model metadataClaude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output.GPT-5.4 Pro exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output.
DeveloperAnthropicOpenAI
Context window1M tokens1.1M tokens
Max output128K tokens128K tokens
ReleasedApr 2026Mar 2026
Modalities

Input

TextImageFile

Output

Text

Input

TextImageFile

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode
ParametersNo dataNo data
TokenizerClaudeGPT
Knowledge cutoffNo dataNo data
OpenRouter IDanthropic/claude-opus-4.6-fastopenai/gpt-5.4-pro
ReferencesNo dataNo data
$30.00/M
#46
Output price
$25.00/M#47
$180.00/M#54
Blended price
$10.00/M#68
$67.50/M#76

GPT-5.4 Pro

speed / latency

N/A / N/A

input / output

No data

Cuz AI5 tests
Claude

Claude Opus 4.6

speed / latency

43 tok/s / 2285ms

input / output

No data

OpenAI

GPT-5.4 Pro

speed / latency

N/A / N/A

input / output

No data

EasyMore5 tests
Claude

Claude Opus 4.6

speed / latency

27 tok/s / 15402ms

input / output

No data

OpenAI

GPT-5.4 Pro

speed / latency

N/A / N/A

input / output

No data

N1N5 tests
Claude

Claude Opus 4.6

speed / latency

46 tok/s / 2559ms

input / output

No data

OpenAI

GPT-5.4 Pro

speed / latency

N/A / N/A

input / output

No data

TradingBase API5 tests
Claude

Claude Opus 4.6

speed / latency

43 tok/s / 1437ms

input / output

No data

OpenAI

GPT-5.4 Pro

speed / latency

N/A / N/A

input / output

No data

UnifyLLM
Claude

Claude Opus 4.6

claude-opus-4-6-c

speed / latency

No data

input / output

$0.200/M / $0.200/M

OpenAI

GPT-5.4 Pro

gpt-5.4-pro

speed / latency

No data

input / output

$75.00/M / $450.00/M

ZEN-AI VIP
Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$0.205/M / $1.03/M

OpenAI

GPT-5.4 Pro

gpt-5.4-pro-2026-03-05

speed / latency

No data

input / output

$1.23/M / $9.86/M

KFCV50
Claude

Claude Opus 4.6

claude-opus-4-6-20260205

speed / latency

No data

input / output

$0.685/M / $3.42/M

OpenAI

GPT-5.4 Pro

gpt-5.4-pro-2026-03-05

speed / latency

No data

input / output

$4.11/M / $24.66/M

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

Data as of Jun 13, 2026, 03:17 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.

Reasoning