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Data points: 115

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 Gemini 3.1 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 3 to 2.

Evidence depth

115 data points

Includes 8 benchmark rows, 6 audit samples, and 7 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 21 high-signal samples across speed, scores, and audit health.

Model compare

Claude Opus 4.6 vs Gemini 3.1 Pro

claude-opus-4-6-vs-gemini-3-1-pro

Model A

Claude

Claude Opus 4.6

Model B

Gemini

Gemini 3.1 Pro

Overall leaderLeadingContender
Verified metric wins3 wins2 wins
Where it leadsFirst-token latency, 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.Gemini 3.1 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input.
DeveloperAnthropicGoogle
Context window1M tokens1.0M tokens
Max output128K tokens65.5K tokens
ReleasedApr 2026Feb 2026
Modalities

Input

TextImageFile

Output

Text

Input

AudioFileImageTextvideo

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning
ParametersNo dataNo data
TokenizerClaudeGemini
Knowledge cutoffNo dataNo data
OpenRouter IDanthropic/claude-opus-4.6-fastgoogle/gemini-3.1-pro-preview
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
GeminiGemini 3.1 Pro
GPQA
84.0%#38
94.1%#1
SciCode
45.7%#20
58.9%#2
HLE
18.6%#43
44.7%#3
Time to first answer token
1.44 s#34
28.68 s#84
Output speed
44.9 tok/s#96
133.4 tok/s#35
Input price
$5.00/M#41
$2.00/M#36
Output price
$25.00/M#47
$12.00/M#42
Time to first token
1.44 s#57
28.68 s#98

API audit comparison

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

Provider
ClaudeClaude Opus 4.6
GeminiGemini 3.1 Pro
VSLLMWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

94

View report
76100100100
Gemini

Gemini 3.1 Pro

gemini-3.1-pro-preview

Audit score

79

View report
698463100
Cuz AIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

89

View report
56100100100
Gemini

Gemini 3.1 Pro

gemini-3.1-pro-preview

No audit yet

Yuan APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

89

View report
56100100100
Gemini

Gemini 3.1 Pro

gemini-3.1-pro

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
Gemini

Gemini 3.1 Pro

gemini-3.1-pro-preview

No audit yet

钠 APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

80

View report
668470100
Gemini

Gemini 3.1 Pro

gemini-3.1-pro-high

No audit yet

RenRen APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

78

View report
70728088
Gemini

Gemini 3.1 Pro

gemini-3.1-pro

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
GeminiGemini 3.1 Pro
钠 API25 tests
Claude

Claude Opus 4.6

claude-opus-4-6-thinking

speed / latency

42 tok/s / 2282ms

input / output

$0.685/M / $3.42/M

Gemini

Gemini 3.1 Pro

gemini-3.1-pro-preview

speed / latency

96 tok/s / 13019ms

input / output

$0.0041/M / $0.0041/M

Kunkunout API20 tests
Claude

Claude Opus 4.6

speed / latency

40 tok/s / 16141ms

input / output

No data

Gemini

Gemini 3.1 Pro

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

Gemini

Gemini 3.1 Pro

speed / latency

N/A / N/A

input / output

No data

TradingBase API15 tests
Claude

Claude Opus 4.6

speed / latency

43 tok/s / 1437ms

input / output

No data

Gemini

Gemini 3.1 Pro

speed / latency

102 tok/s / 12933ms

input / output

No data

GOU API10 tests
Claude

Claude Opus 4.6

speed / latency

51 tok/s / 9040ms

input / output

No data

Gemini

Gemini 3.1 Pro

speed / latency

N/A / N/A

input / output

No data

小水管 API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0/M / $0/M

Gemini

Gemini 3.1 Pro

gemini-3.1-pro-preview

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

Gemini

Gemini 3.1 Pro

gemini-3-1-pro-low

speed / latency

No data

input / output

$10.00/M / $10.00/M

When to choose each model

This report only uses LMSpeed data for Claude Opus 4.6 and Gemini 3.1 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude Opus 4.6
GeminiGemini 3.1 Pro
When to choose each model

Claude Opus 4.6

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

Gemini 3.1 Pro

Gemini 3.1 Pro is stronger when you prioritize Cheapest input price, Average speed.

FAQ

TL;DR: Claude Opus 4.6 leads across 115 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 Gemini 3.1 Pro 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, 02:55 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.