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Claude Opus 4.6 vs GPT-4

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

Key Takeaways

Weighted outcome: Claude Opus 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.

Decision read

Claude Opus 4.6

Claude Opus 4.6 has the higher weighted result; Model A / B score 96 to 4.

Evidence depth

75 data points

Includes 5 benchmark rows, 0 audit samples, and 10 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 15 high-signal samples across speed, scores, and audit health.

Change comparison

Switch either side of this report to compare another model with the same LMSpeed data pipeline.

Select a different model to open a new comparison URL.

Comparison sheet

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

Model compare
Claude Opus 4.6
GPT-4
Overall leaderLeadingContender
Weighted overall score96.0 pts4.0 pts
Benchmark category leads3 categories0 categories
Operational advantagesCheapest input price, Average speed, Free providers, Provider coverageFirst-token latency
Context window1M tokens8.2K tokens
Max output128K tokens4.1K tokens
Modalities

Input

TextImageFile

Output

Text

Input

Text

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputText outputTool callingStructured outputsJSON mode

The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.

Model metadata

Model compare
Claude Opus 4.6
GPT-4
DeveloperAnthropicOpenAI
ReleasedFeb 2026May 2023
ParametersNo dataNo data
TokenizerClaudeGPT
Knowledge cutoffNo data2021-09-30
OpenRouter IDanthropic/claude-opus-4.6openai/gpt-4
ReferencesNo dataNo data

When to choose each model

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

Claude Opus 4.6

Claude Opus 4.6 is stronger in benchmark categories (Coding, Reasoning, Math) and operational dimensions (Cheapest input price, Average speed, Free providers, Provider coverage).

GPT-4

GPT-4 has these operational advantages: First-token latency.

Benchmark score comparison

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

Category performance

Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.

Model A coverage
8 / 8
Model B coverage
3 / 8
Shared
3 shared categories

Avg. score

Claude Opus 4.6

51.8

Avg. score

GPT-4

41.2

Agents

Claude Opus 4.6

Claude Opus 4.654.3
GPT-4-

Coding

Claude Opus 4.6 leads by 10.4

Claude Opus 4.656.6
GPT-446.2

Reasoning

Claude Opus 4.6 leads by 16.6

Claude Opus 4.653.4
GPT-436.8

Knowledge

Claude Opus 4.6

Claude Opus 4.653.3
GPT-4-

Math

Claude Opus 4.6 leads by 15.0

Claude Opus 4.655.7
GPT-440.7

Multilingual

Claude Opus 4.6

Claude Opus 4.648.4
GPT-4-

Multimodal

Claude Opus 4.6

Claude Opus 4.647.8
GPT-4-

Instruction following

Claude Opus 4.6

Claude Opus 4.644.8
GPT-4-

Professional benchmark details

Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.

Pricingverified

Input price

Claude Opus 4.6

winner

$5.00/M

Rank #168/186 · confidence 4

+$25.00/M

GPT-4

$30.00/M

Rank #184/186 · confidence 4

Pricingverified

Blended price

Claude Opus 4.6

winner

$10.00/M

Rank #169/186 · confidence 4

+$27.50/M

GPT-4

$37.50/M

Rank #184/186 · confidence 4

Pricingverified

Output price

Claude Opus 4.6

winner

$25.00/M

Rank #169/186 · confidence 4

+$35.00/M

GPT-4

$60.00/M

Rank #179/186 · confidence 4

Reasoningreported

MMLU-Pro

Claude Opus 4.6

winner

82.0%

Rank #50/129 · confidence 4 · eval date 2026-02-01

+25.8%

GPT-4

56.2%

Rank #121/129 · confidence 4

Claude Opus 4.6

winner

84.0%

Rank #75/218 · confidence 4

+49.1%

GPT-4

34.9%

Rank #211/218 · confidence 4

API audit comparison

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

Provider
Claude Opus 4.6
GPT-4
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
Claude Opus 4.6
GPT-4
Rnglg2 API15 tests

Claude Opus 4.6

speed / latency

57 tok/s / 3926ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Cuz AI5 tests

Claude Opus 4.6

speed / latency

43 tok/s / 2285ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

N1N5 tests

Claude Opus 4.6

speed / latency

46 tok/s / 2559ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Claude Opus 4.6

speed / latency

43 tok/s / 1437ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Claude Opus 4.6

speed / latency

45 tok/s / 6167ms

input / output

No data

GPT-4

speed / latency

N/A / N/A

input / output

No data

Claude Opus 4.6

claude-opus-4-6-high

speed / latency

No data

input / output

$0/request

GPT-4

gpt-4-32k-0613

speed / latency

No data

input / output

$0/request

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$0.548/M/$2.74/M

GPT-4

gpt-4-all

speed / latency

No data

input / output

$0.011/request

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$0.548/M/$2.74/M

GPT-4

gpt-4-all

speed / latency

No data

input / output

$0.011/request

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0.017/request

GPT-4

gpt-4-all

speed / latency

No data

input / output

$0.014/request

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

No data

input / output

$0.822/M/$4.11/M

GPT-4

gpt-4-all

speed / latency

No data

input / output

$0.016/request

FAQ

Weighted outcome: Claude Opus 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.

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.

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.