Data points: 76
Model compare
The readout for Claude 3 Opus and Claude Sonnet 4.6, before the detailed comparison sheet.
Weighted outcome: Claude Sonnet 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Sonnet 4.6
Claude Sonnet 4.6 has the higher weighted result; Model A / B score 20 to 80.
Evidence depth
76 data points
Includes 11 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with Claude Sonnet 4.6
The charts below split 17 high-signal samples across speed, scores, and audit health.
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.
This report only uses LMSpeed data for Claude 3 Opus and Claude Sonnet 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude 3 Opus | Claude Sonnet 4.6 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 20.0 pts | 80.0 pts |
| Benchmark category leads | 2 categories | 6 categories |
| Operational advantages | No data | Cheapest input price, Free providers, Provider coverage |
| Context window | No data | 1M tokens |
| Max output | No data | 128K tokens |
| Modalities | No data | Input TextImageFile Output Text |
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 compare | Claude 3 Opus | Claude Sonnet 4.6 |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Released | No data | Feb 2026 |
| Parameters | No data | No data |
| Tokenizer | No data | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | anthropic/claude-sonnet-4.6 |
| References | No data | No data |
This report only uses LMSpeed data for Claude 3 Opus and Claude Sonnet 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude 3 Opus
Claude 3 Opus leads these benchmark categories: Multimodal, Instruction following.
Claude Sonnet 4.6
Claude Sonnet 4.6 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Claude 3 Opus
45.5
Avg. score
Claude Sonnet 4.6
54.1
Claude Sonnet 4.6 leads by 3.0
Claude Sonnet 4.6 leads by 17.8
Claude Sonnet 4.6 leads by 8.4
Claude Sonnet 4.6 leads by 22.1
Claude Sonnet 4.6 leads by 11.9
Claude Sonnet 4.6 leads by 12.7
Claude 3 Opus leads by 6.9
Claude 3 Opus leads by 0.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude 3 Opus
$75.00/M
Rank #158/163 · confidence 4
Claude Sonnet 4.6
winner$15.00/M
Rank #138/163 · confidence 4
Claude 3 Opus
$30.00/M
Rank #157/163 · confidence 4
Claude Sonnet 4.6
winner$6.00/M
Rank #139/163 · confidence 4
Claude 3 Opus
$15.00/M
Rank #156/163 · confidence 4
Claude Sonnet 4.6
winner$3.00/M
Rank #139/163 · confidence 4
Claude 3 Opus
48.9%
Rank #165/187 · confidence 4
Claude Sonnet 4.6
winner87.5%
Rank #30/187 · confidence 4
Claude 3 Opus
3.1%
Rank #183/186 · confidence 4
Claude Sonnet 4.6
winner30.0%
Rank #30/186 · confidence 4
Claude 3 Opus
69.6%
Rank #102/125 · confidence 4
Claude Sonnet 4.6
winner79.2%
Rank #68/125 · confidence 3 · eval date 2026-02-01
Claude 3 Opus
23.3%
Rank #163/184 · confidence 4
Claude Sonnet 4.6
winner46.8%
Rank #28/184 · confidence 4
Claude 3 Opus
23.3
Rank #93/96 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner46.9
Rank #33/96 · confidence 3 · eval date 2026-02-01
Claude 3 Opus
11.8
Rank #89/99 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner35.9
Rank #43/99 · confidence 3 · eval date 2026-02-01
Claude 3 Opus
48.9
Rank #94/96 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner79.9
Rank #63/96 · confidence 3 · eval date 2026-02-01
Claude 3 Opus
3.1
Rank #96/96 · confidence 1 · eval date 2024-03-01
Claude Sonnet 4.6
winner13.2
Rank #63/96 · confidence 3 · eval date 2026-02-01
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude 3 Opus | Claude Sonnet 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 Opus | Claude Sonnet 4.6 |
|---|---|---|
10 tests | Claude 3 Opus claude-3-opus-20240229 speed / latency N/A / N/A input / output $1.61/M/$8.04/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency 41 tok/s / 3714ms input / output $0.664/M/$3.32/M |
0 tests | Claude 3 Opus speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
0 tests | Claude 3 Opus speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
0 tests | Claude 3 Opus speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
0 tests | Claude 3 Opus speed / latency N/A / N/A input / output No data | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data |
Claude 3 Opus claude-3-opus-20240229 speed / latency No data input / output $2.05/M/$10.27/M | Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0.411/M |
Weighted outcome: Claude Sonnet 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
