Data points: 120
Model compare
The readout for Claude Sonnet 4.6 and O3 Mini, 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 62 to 38.
Evidence depth
120 data points
Includes 25 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with Claude Sonnet 4.6
The charts below split 33 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 Sonnet 4.6 and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Sonnet 4.6 | O3 Mini |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 62.0 pts | 38.0 pts |
| Benchmark category leads | 5 categories | 3 categories |
| Operational advantages | Cheapest input price, First-token latency, Provider coverage | Average speed, Free providers |
| Context window | 1M tokens | 200K tokens |
| Max output | 128K tokens | 100K tokens |
| Modalities | 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 Sonnet 4.6 | O3 Mini |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Feb 2026 | Feb 2025 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | anthropic/claude-sonnet-4.6 | openai/o3-mini |
| References | No data | No data |
This report only uses LMSpeed data for Claude Sonnet 4.6 and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Sonnet 4.6
Claude Sonnet 4.6 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Multilingual) and operational dimensions (Cheapest input price, First-token latency, Provider coverage).
O3 Mini
O3 Mini is stronger in benchmark categories (Math, Multimodal, Instruction following) and operational dimensions (Average speed, Free providers).
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 Sonnet 4.6
54
Avg. score
O3 Mini
49.3
Claude Sonnet 4.6 leads by 13.8
Claude Sonnet 4.6 leads by 18.7
Claude Sonnet 4.6 leads by 0.4
Claude Sonnet 4.6 leads by 22.8
O3 Mini leads by 5.4
Claude Sonnet 4.6 leads by 9.7
O3 Mini leads by 10.3
O3 Mini leads by 11.8
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Sonnet 4.6
winner76.0
Rank #21/127 · confidence 3 · eval date 2026-02-01
O3 Mini
52.0
Rank #68/127 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
77.1 tok/s
Rank #84/139 · confidence 4
O3 Mini
winner214.7 tok/s
Rank #15/139 · confidence 4
Claude Sonnet 4.6
74.36 s
Rank #130/139 · confidence 4
O3 Mini
winner7.10 s
Rank #66/139 · confidence 4
Claude Sonnet 4.6
74.36 s
Rank #134/139 · confidence 4
O3 Mini
winner7.10 s
Rank #111/139 · confidence 4
Claude Sonnet 4.6
$15.00/M
Rank #138/163 · confidence 4
O3 Mini
winner$4.40/M
Rank #99/163 · confidence 4
Claude Sonnet 4.6
$6.00/M
Rank #139/163 · confidence 4
O3 Mini
winner$1.93/M
Rank #100/163 · confidence 4
Claude Sonnet 4.6
$3.00/M
Rank #139/163 · confidence 4
O3 Mini
winner$1.10/M
Rank #104/163 · confidence 4
Claude Sonnet 4.6
winner80.9
Rank #12/70 · confidence 3 · eval date 2026-02-01
O3 Mini
61.4
Rank #27/70 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner87.5%
Rank #30/187 · confidence 4
O3 Mini
74.8%
Rank #96/187 · confidence 4
Claude Sonnet 4.6
winner30.0%
Rank #30/186 · confidence 4
O3 Mini
8.7%
Rank #97/186 · confidence 4
Claude Sonnet 4.6
winner79.2%
Rank #68/125 · confidence 3 · eval date 2026-02-01
O3 Mini
79.1%
Rank #69/125 · confidence 4
Claude Sonnet 4.6
winner79.6
Rank #13/43 · confidence 3 · eval date 2026-02-01
O3 Mini
49.3
Rank #40/43 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner46.2
Rank #17/85 · confidence 3 · eval date 2026-02-01
O3 Mini
6.8
Rank #77/85 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner46.8%
Rank #28/184 · confidence 4
O3 Mini
39.9%
Rank #69/184 · confidence 4
Claude Sonnet 4.6
winner46.9
Rank #33/96 · confidence 3 · eval date 2026-02-01
O3 Mini
39.9
Rank #59/96 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner70.9
Rank #38/100 · confidence 3 · eval date 2026-02-01
O3 Mini
49.4
Rank #69/100 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner83.6
Rank #13/92 · confidence 3 · eval date 2026-02-01
O3 Mini
55.2
Rank #56/92 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner35.9
Rank #43/99 · confidence 3 · eval date 2026-02-01
O3 Mini
19.0
Rank #77/99 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner79.9
Rank #63/96 · confidence 3 · eval date 2026-02-01
O3 Mini
74.8
Rank #71/96 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner13.2
Rank #63/96 · confidence 3 · eval date 2026-02-01
O3 Mini
8.7
Rank #71/96 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner89.6
Rank #7/62 · confidence 3 · eval date 2026-02-01
O3 Mini
44.8
Rank #40/62 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner84.4
Rank #8/81 · confidence 3 · eval date 2026-02-01
O3 Mini
65.0
Rank #36/81 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner79.9
Rank #19/75 · confidence 3 · eval date 2026-02-01
O3 Mini
77.2
Rank #24/75 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner70.3
Rank #31/95 · confidence 3 · eval date 2026-02-01
O3 Mini
59.3
Rank #41/95 · confidence 1 · eval date 2025-01-31
Claude Sonnet 4.6
winner79.5
Rank #56/84 · confidence 3 · eval date 2026-02-01
O3 Mini
28.7
Rank #74/84 · confidence 1 · eval date 2025-01-31
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Sonnet 4.6 | O3 Mini |
|---|---|---|
Winner: Claude Sonnet 4.6 | Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 89 56100100100 | O3 Mini o3-mini No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Sonnet 4.6 | O3 Mini |
|---|---|---|
25 tests | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 66 tok/s / 6491ms input / output No data |
10 tests | Claude Sonnet 4.6 speed / latency 55 tok/s / 2094ms input / output No data | O3 Mini speed / latency 117 tok/s / 4809ms input / output No data |
6 tests | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 44 tok/s / 17418ms input / output No data |
5 tests | Claude Sonnet 4.6 speed / latency 27 tok/s / 11925ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
5 tests | Claude Sonnet 4.6 speed / latency 47 tok/s / 1068ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0/request | O3 Mini o3-mini-high speed / latency No data input / output $1.47/request | |
Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0.0003/M/$0.0015/M | O3 Mini o3-mini speed / latency No data input / output $1.10/M |
Weighted outcome: Claude Sonnet 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
