Data points: 105
The readout for Claude Opus 4.5 and Claude Sonnet 4.6, before the detailed comparison sheet.
Decision read
Claude Sonnet 4.6
Claude Sonnet 4.6 currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
105 data points
Includes 8 benchmark rows, 4 audit samples, and 9 provider examples.
Selection signal
Start with Claude Sonnet 4.6
The charts below split 21 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.5 vs Claude Sonnet 4.6claude-opus-4-5-vs-claude-sonnet-4-6 | Model A Claude Opus 4.5 | Model B Claude Sonnet 4.6 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | Average speed, First-token latency |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Opus 4.5 | Claude Sonnet 4.6 |
|---|---|---|
| SciCode | 47.0%#15 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.5 | Claude Sonnet 4.6 |
|---|---|---|
Winner: Claude Opus 4.5 | Claude Opus 4.5 claude-opus-4-5-20251101 Audit score 90 72 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.5 | Claude Sonnet 4.6 |
|---|---|---|
25 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Claude Opus 4.5 and Claude Sonnet 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.5 | Claude Sonnet 4.6 |
|---|---|---|
| When to choose each model | Claude Opus 4.5 Claude Opus 4.5 is stronger when you prioritize Average speed, First-token latency. | Claude Sonnet 4.6 Claude Sonnet 4.6 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: Claude Sonnet 4.6 leads across 105 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.5 vs Claude Sonnet 4.6 into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Free providers, Provider coverage, Recent tests |
| Model metadata | Claude Opus 4.5 exposes 200K tokens; notable signals: Text input, Image input, File input, Text output. | Claude Sonnet 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Context window | 200K tokens | 1M tokens |
| Max output | 64K tokens | 128K tokens |
| Released | Nov 2025 | Feb 2026 |
| Modalities | Input FileImageText Output Text | Input TextImageFile Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Claude | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-opus-4.5 | anthropic/claude-sonnet-4.6 |
| References | No data | No data |
| Time to first answer token | 1.45 s#33 | 1.15 s#25 |
|---|
| Input price | $5.00/M#41 | $3.00/M#39 |
|---|
| Time to first token | 1.45 s#57 | 1.15 s#42 |
|---|
| Output price | $25.00/M#47 | $15.00/M#44 |
|---|
| GPQA | 81.0%#53 | 79.9%#58 |
|---|
| HLE | 12.9%#59 | 13.2%#58 |
|---|
| Blended price | $10.00/M#68 | $6.00/M#65 |
|---|
Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 82 727580100 |
ApiToken OnlineWinner: Claude Sonnet 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 84 6968100100 |
|---|
小水管 APIWinner: Claude Sonnet 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 82 5375100100 |
|---|
PackyAPIWinner: Claude Sonnet 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 81 727280100 |
|---|
Claude Sonnet 4.6
speed / latency
40 tok/s / 3145ms
input / output
No data
N1N20 tests | Claude Opus 4.5 speed / latency 56 tok/s / 2598ms input / output No data | Claude Sonnet 4.6 speed / latency 55 tok/s / 2094ms input / output No data |
|---|
ModelPool10 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency 41 tok/s / 3714ms input / output No data |
|---|
哈基米API站10 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency 86 tok/s / 1831ms input / output No data |
|---|
小水管 API10 tests | Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency N/A / N/A input / output $0/M / $0/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency 31 tok/s / 4124ms input / output $0/M / $0/M |
|---|
Claude Opus 4.5 claude-opus-4.5 speed / latency No data input / output $0/M / $0/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $3.00/M / $15.00/M |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0.0014/M / $0.0068/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0.0008/M / $0.0041/M |
Claude Opus 4.5 c/claude-opus-4-5-20251101 speed / latency No data input / output $0.0017/M / $0.0017/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $3.00/M / $15.00/M |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0.182/M / $0.182/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0.018/M / $0.018/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
