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Data points: 74

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 Qwen3.5 Omni Flash, 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

74 data points

Includes 8 benchmark rows, 1 audit samples, and 7 provider examples.

Selection signal

Start with Claude Opus 4.6

The charts below split 16 high-signal samples across speed, scores, and audit health.

Model compare

Claude Opus 4.6 vs Qwen3.5 Omni Flash

claude-opus-4-6-vs-qwen3-5-omni-flash

Model A

Claude

Claude Opus 4.6

Model B

Qwen

Qwen3.5 Omni Flash

Overall leaderLeadingContender
Verified metric wins4 wins0 wins
Where it leadsCheapest input price, Free providers, Provider coverage, Recent testsNo data
Model metadataClaude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output.No OpenRouter metadata is available yet for this model.
DeveloperAnthropicNo data
Context window1M tokensNo data
Max output128K tokensNo data
ReleasedApr 2026No data
Modalities

Input

TextImageFile

Output

Text
No data
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
None listed
ParametersNo dataNo data
TokenizerClaudeNo data
Knowledge cutoffNo dataNo data
OpenRouter IDanthropic/claude-opus-4.6-fastNo data
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
QwenQwen3.5 Omni Flash
Output speed
44.9 tok/s#96
258.1 tok/s#4
Input price
$5.00/M#41
$0.100/M#6
Output price
$25.00/M#47
$0.800/M#12
Blended price
$10.00/M#68
$0.275/M#16
SciCode
45.7%#20
25.5%#100
Time to first answer token
1.44 s#34
0.98 s#23
Time to first token
1.44 s#57
0.98 s#35
GPQA
84.0%#38
74.2%#71

API audit comparison

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

Provider
ClaudeClaude Opus 4.6
QwenQwen3.5 Omni Flash
小水管 APIWinner: Claude Opus 4.6
Claude

Claude Opus 4.6

claude-opus-4-6

Audit score

84

View report
728480100
Qwen

Qwen3.5 Omni Flash

qwen3.5-omni-flash

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
QwenQwen3.5 Omni Flash
小水管 API5 tests
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

45 tok/s / 6167ms

input / output

$0/M / $0/M

Qwen

Qwen3.5 Omni Flash

qwen3.5-omni-flash

speed / latency

N/A / N/A

input / output

$0/M / $0/M

素墨API5 tests
Claude

Claude Opus 4.6

speed / latency

47 tok/s / 2344ms

input / output

No data

Qwen

Qwen3.5 Omni Flash

speed / latency

N/A / N/A

input / output

No data

42公益站0 tests
Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

Qwen

Qwen3.5 Omni Flash

speed / latency

N/A / N/A

input / output

No data

91VIP0 tests
Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

Qwen

Qwen3.5 Omni Flash

speed / latency

N/A / N/A

input / output

No data

AI Claw API0 tests
Claude

Claude Opus 4.6

speed / latency

N/A / N/A

input / output

No data

Qwen

Qwen3.5 Omni Flash

speed / latency

N/A / N/A

input / output

No data

初叶🍂Furry API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$0.500/M / $0.500/M

Qwen

Qwen3.5 Omni Flash

qwen3.5-omni-flash-2026-03-15

speed / latency

No data

input / output

$0.050/M / $0.050/M

GPTPlus5 API
Claude

Claude Opus 4.6

claude-opus-4-6

speed / latency

No data

input / output

$1.64/M / $8.22/M

Qwen

Qwen3.5 Omni Flash

qwen3.5-omni-flash

speed / latency

No data

input / output

$0.274/M / $0.274/M

When to choose each model

This report only uses LMSpeed data for Claude Opus 4.6 and Qwen3.5 Omni Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude Opus 4.6
QwenQwen3.5 Omni Flash
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.

Qwen3.5 Omni Flash

Qwen3.5 Omni Flash 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 74 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 Qwen3.5 Omni Flash 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, 04:46 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.