Data points: 160
Model compare
The readout for Claude Opus 4.5 and Claude Opus 4.6, before the detailed comparison sheet.
Weighted outcome: Claude Opus 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Opus 4.6
Claude Opus 4.6 has the higher weighted result; Model A / B score 38 to 62.
Evidence depth
160 data points
Includes 38 benchmark rows, 4 audit samples, and 6 provider examples.
Selection signal
Start with Claude Opus 4.6
The charts below split 48 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 Opus 4.5 and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 38.0 pts | 62.0 pts |
| Benchmark category leads | 3 categories | 5 categories |
| Operational advantages | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage |
| Context window | 200K tokens | 1M tokens |
| Max output | 64K tokens | 128K tokens |
| Modalities | Input FileImageText 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 Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Released | Nov 2025 | Feb 2026 |
| Parameters | No data | No data |
| Tokenizer | Claude | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-opus-4.5 | anthropic/claude-opus-4.6 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Opus 4.5 and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Opus 4.5
Claude Opus 4.5 is stronger in benchmark categories (Reasoning, Knowledge, Instruction following) and operational dimensions (Average speed, First-token latency).
Claude Opus 4.6
Claude Opus 4.6 is stronger in benchmark categories (Agents, Coding, Math, Multilingual, Multimodal) 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 Opus 4.5
50.7
Avg. score
Claude Opus 4.6
53.4
Claude Opus 4.6 leads by 5.6
Claude Opus 4.6 leads by 2.2
Claude Opus 4.5 leads by 8.8
Claude Opus 4.5 leads by 3.9
Claude Opus 4.6 leads by 6.7
Claude Opus 4.6 leads by 2.3
Claude Opus 4.6 leads by 17.9
Claude Opus 4.5 leads by 0.9
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Opus 4.5
59.0
Rank #31/84 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner68.0
Rank #17/84 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
$5.00/M
Rank #146/162 · confidence 4
Claude Opus 4.6
$5.00/M
Rank #146/162 · confidence 4
Claude Opus 4.5
$10.00/M
Rank #147/162 · confidence 4
Claude Opus 4.6
$10.00/M
Rank #147/162 · confidence 4
Claude Opus 4.5
$25.00/M
Rank #147/162 · confidence 4
Claude Opus 4.6
$25.00/M
Rank #147/162 · confidence 4
Claude Opus 4.5
winner88.9%
Rank #4/125 · confidence 4
Claude Opus 4.6
82.0%
Rank #47/125 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
0.3
Rank #68/73 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner2.8
Rank #43/73 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
winner65.3
Rank #44/89 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
58.3
Rank #62/89 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
81.0%
Rank #73/188 · confidence 4
Claude Opus 4.6
winner84.0%
Rank #53/188 · confidence 4
Claude Opus 4.5
12.9%
Rank #80/187 · confidence 4
Claude Opus 4.6
winner18.6%
Rank #62/187 · confidence 4
Claude Opus 4.5
winner80.9
Rank #6/43 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
80.8
Rank #7/43 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
54.2
Rank #31/65 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner63.7
Rank #8/65 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
winner57.1
Rank #19/37 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
53.4
Rank #30/37 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
winner47.0%
Rank #25/185 · confidence 4
Claude Opus 4.6
45.7%
Rank #33/185 · confidence 4
Claude Opus 4.5
winner47.0
Rank #31/96 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
45.7
Rank #37/96 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
4.2
Rank #23/35 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner22.9
Rank #10/35 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
20.7
Rank #29/47 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner40.7
Rank #10/47 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
58.6
Rank #23/56 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner59.8
Rank #22/56 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
70.6
Rank #7/16 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner95.0
Rank #1/16 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
61.0
Rank #38/55 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner82.6
Rank #8/55 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
40.7
Rank #20/90 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner45.2
Rank #15/90 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
34.7
Rank #48/99 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner37.8
Rank #39/99 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
75.4
Rank #45/90 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner76.0
Rank #44/90 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
81.0
Rank #60/96 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner84.0
Rank #52/96 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
12.9
Rank #65/96 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner18.6
Rank #56/96 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
1277.0
Rank #24/66 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner1325.0
Rank #4/66 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
45.7
Rank #9/9 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner83.1
Rank #4/9 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
70.6
Rank #25/27 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner77.3
Rank #20/27 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
29.4
Rank #33/35 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner62.1
Rank #23/35 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
71.2
Rank #39/57 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner72.5
Rank #36/57 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
43.0
Rank #64/86 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner44.6
Rank #61/86 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
59.6
Rank #15/28 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner70.4
Rank #3/28 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
winner64.2
Rank #6/50 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
61.9
Rank #10/50 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
32.3
Rank #9/20 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner36.7
Rank #6/20 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
50.6
Rank #10/11 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner66.6
Rank #8/11 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
66.3
Rank #14/21 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner72.7
Rank #10/21 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
48.2
Rank #36/53 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner65.3
Rank #21/53 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
59.3
Rank #28/46 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
winner65.4
Rank #22/46 · confidence 3 · eval date 2026-02-01
Claude Opus 4.5
winner86.3
Rank #39/84 · confidence 4 · eval date 2025-11-01
Claude Opus 4.6
84.8
Rank #44/84 · 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 Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
Winner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 97 10010010088 |
Winner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 |
Winner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 84 648486100 |
Winner: Claude Opus 4.6 | Claude Opus 4.5 claude-opus-4-5-20251101 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 78 70728088 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.5 | Claude Opus 4.6 |
|---|---|---|
25 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 43 tok/s / 2542ms input / output No data |
20 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 40 tok/s / 16141ms input / output No data |
20 tests | Claude Opus 4.5 speed / latency 56 tok/s / 2598ms input / output No data | Claude Opus 4.6 speed / latency 46 tok/s / 2559ms input / output No data |
20 tests | Claude Opus 4.5 speed / latency 70 tok/s / 4078ms input / output No data | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data |
10 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 84 tok/s / 3916ms input / output No data |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0/request | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/request |
Weighted outcome: Claude Opus 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 inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
