Data points: 56
The readout for Claude 3.7 Sonnet and Claude Opus 4.6, before the detailed comparison sheet.
Decision read
Claude Opus 4.6
Claude Opus 4.6 currently has the stronger profile, with verified wins split 1 to 5.
Evidence depth
56 data points
Includes 0 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with Claude Opus 4.6
The charts below split 8 high-signal samples across speed, scores, and audit health.
Model compare Claude 3.7 Sonnet vs Claude Opus 4.6claude-3-7-sonnet-vs-claude-opus-4-6 | Model A Claude 3.7 Sonnet | Model B Claude Opus 4.6 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 5 wins |
| Where it leads | Cheapest input price | Average speed, First-token latency, Free providers, Provider coverage, Recent tests |
| Model metadata | No OpenRouter metadata is available yet for this model. | Claude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | Anthropic | Anthropic |
| Context window | No data | 1M tokens |
| Max output | No data | 128K tokens |
| Released | No data | Apr 2026 |
| Modalities | No data | Input TextImageFile Output Text |
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | No data | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | anthropic/claude-opus-4.6-fast |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude 3.7 Sonnet | Claude Opus 4.6 |
|---|---|---|
| No shared benchmark metrics are available yet. | ||
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude 3.7 Sonnet | Claude Opus 4.6 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude 3.7 Sonnet | Claude Opus 4.6 |
|---|---|---|
Rnglg2 API15 tests | Claude 3.7 Sonnet speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data |
ModelPool10 tests | Claude 3.7 Sonnet claude-3-7-sonnet-20250219 speed / latency N/A / N/A input / output $0.257/M / $1.29/M | Claude Opus 4.6 claude-opus-4-6-thinking speed / latency 84 tok/s / 3916ms input / output $0.429/M / $2.14/M |
EasyMore5 tests | Claude 3.7 Sonnet speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 27 tok/s / 15402ms input / output No data |
3173721 API0 tests | Claude 3.7 Sonnet claude-3-7-sonnet speed / latency N/A / N/A input / output $0.0010/M / $0.0010/M | Claude Opus 4.6 claude-opus-4-6-thinking speed / latency N/A / N/A input / output $5.00/M / $25.00/M |
AASS API0 tests | Claude 3.7 Sonnet speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency N/A / N/A input / output No data |
Claude 3.7 Sonnet claude-3-7-sonnet-latest speed / latency No data input / output $0.104/M / $0.521/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.174/M / $0.868/M | |
Claude 3.7 Sonnet claude-3.7-sonnet speed / latency No data input / output $0.411/M / $2.05/M | Claude Opus 4.6 claude-opus-4-6-medium speed / latency No data input / output $0.685/M / $3.42/M | |
Claude 3.7 Sonnet claude-3-7-sonnet-20250219 speed / latency No data input / output $0.411/M / $2.05/M | Claude Opus 4.6 claude-opus-4-6-thinking speed / latency No data input / output $0.685/M / $3.42/M |
This report only uses LMSpeed data for Claude 3.7 Sonnet and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude 3.7 Sonnet | Claude Opus 4.6 |
|---|---|---|
| When to choose each model | Claude 3.7 Sonnet Claude 3.7 Sonnet is stronger when you prioritize Cheapest input price. | Claude Opus 4.6 Claude Opus 4.6 is stronger when you prioritize Average speed, First-token latency, Free providers, Provider coverage, Recent tests. |
TL;DR: Claude Opus 4.6 leads across 56 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude 3.7 Sonnet vs Claude Opus 4.6 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
