Data points: 164
Model compare
The readout for Claude Opus 4.6 and GPT-5.4 Mini, 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 65.1 to 34.9.
Evidence depth
164 data points
Includes 32 benchmark rows, 6 audit samples, and 7 provider examples.
Selection signal
Start with Claude Opus 4.6
The charts below split 45 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 4.6 and GPT-5.4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Opus 4.6 | GPT-5.4 Mini |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 65.1 pts | 34.9 pts |
| Benchmark category leads | 5 categories | 2 categories |
| Operational advantages | Cheapest input price, Free providers | Average speed, First-token latency, Provider coverage |
| Context window | 1M tokens | 400K tokens |
| Max output | 128K tokens | 128K 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 Opus 4.6 | GPT-5.4 Mini |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Feb 2026 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2025-08-31 |
| OpenRouter ID | anthropic/claude-opus-4.6 | openai/gpt-5.4-mini |
| References | No data | No data |
This report only uses LMSpeed data for Claude Opus 4.6 and GPT-5.4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Opus 4.6
Claude Opus 4.6 is stronger in benchmark categories (Agents, Coding, Knowledge, Math, Multimodal) and operational dimensions (Cheapest input price, Free providers).
GPT-5.4 Mini
GPT-5.4 Mini is stronger in benchmark categories (Reasoning, Instruction following) and operational dimensions (Average speed, First-token latency, 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 4.6
53.4
Avg. score
GPT-5.4 Mini
51.9
Claude Opus 4.6 leads by 4.3
Claude Opus 4.6 leads by 1.5
GPT-5.4 Mini leads by 2.5
Claude Opus 4.6 leads by 6.3
Claude Opus 4.6 leads by 6.8
Claude Opus 4.6
Claude Opus 4.6 leads by 2.7
GPT-5.4 Mini leads by 9.3
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Opus 4.6
winner68.0
Rank #17/84 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
58.0
Rank #36/84 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
$10.00/M
Rank #147/162 · confidence 4
GPT-5.4 Mini
winner$1.69/M
Rank #95/162 · confidence 4
Claude Opus 4.6
$5.00/M
Rank #146/162 · confidence 4
GPT-5.4 Mini
winner$0.750/M
Rank #95/162 · confidence 4
Claude Opus 4.6
$25.00/M
Rank #147/162 · confidence 4
GPT-5.4 Mini
winner$4.50/M
Rank #102/162 · confidence 4
Claude Opus 4.6
2.8
Rank #43/73 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner10.0
Rank #21/73 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
58.3
Rank #62/89 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner69.3
Rank #23/89 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner84.0%
Rank #53/188 · confidence 4
GPT-5.4 Mini
82.3%
Rank #64/188 · confidence 4
Claude Opus 4.6
winner18.6%
Rank #62/187 · confidence 4
GPT-5.4 Mini
17.1%
Rank #65/187 · confidence 4
Claude Opus 4.6
winner57.6
Rank #5/33 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
48.0
Rank #10/33 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
26.9
Rank #7/8 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner27.0
Rank #6/8 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner63.7
Rank #8/65 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
54.3
Rank #30/65 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
45.7
Rank #37/96 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner49.9
Rank #23/96 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner45.7%
Rank #33/185 · confidence 4
GPT-5.4 Mini
44.2%
Rank #38/185 · confidence 4
Claude Opus 4.6
winner22.9
Rank #10/35 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
2.1
Rank #35/35 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner40.7
Rank #10/47 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
28.3
Rank #20/47 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner59.8
Rank #22/56 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
44.7
Rank #32/56 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner82.6
Rank #8/55 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
60.2
Rank #39/55 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner40.0
Rank #10/15 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
28.2
Rank #14/15 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
76.0
Rank #44/90 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner89.8
Rank #13/90 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner45.2
Rank #15/90 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
37.5
Rank #32/90 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
37.8
Rank #39/99 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner40.0
Rank #31/99 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
84.0
Rank #52/96 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner87.5
Rank #34/96 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
18.6
Rank #56/96 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner26.6
Rank #38/96 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner77.3
Rank #20/27 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
76.6
Rank #21/27 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner62.1
Rank #23/35 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
59.2
Rank #24/35 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
72.5
Rank #36/57 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner73.3
Rank #33/57 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
44.6
Rank #61/86 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
winner73.3
Rank #26/86 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner33.0
Rank #8/24 · confidence 1 · eval date 2026-02-01
GPT-5.4 Mini
28.2
Rank #11/24 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner72.7
Rank #10/21 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
72.1
Rank #11/21 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner65.3
Rank #22/53 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
55.5
Rank #29/53 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner65.4
Rank #22/46 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
60.0
Rank #26/46 · confidence 3 · eval date 2026-03-17
Claude Opus 4.6
winner84.8
Rank #44/84 · confidence 3 · eval date 2026-02-01
GPT-5.4 Mini
83.3
Rank #49/84 · confidence 3 · eval date 2026-03-17
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.6 | GPT-5.4 Mini |
|---|---|---|
Winner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 97 10010010088 | GPT-5.4 Mini gpt-5.4-mini No audit yet |
Winner: GPT-5.4 Mini | Claude Opus 4.6 claude-opus-4-6 Audit score 91 7610086100 | GPT-5.4 Mini gpt-5.4-mini Audit score 97 100 |
Winner: GPT-5.4 Mini | Claude Opus 4.6 claude-opus-4-6 No audit yet | GPT-5.4 Mini gpt-5.4-mini Audit score 97 10010086100 |
Winner: GPT-5.4 Mini | Claude Opus 4.6 claude-opus-4-6 No audit yet | GPT-5.4 Mini gpt-5.4-mini Audit score 93 1008486100 |
Winner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 | GPT-5.4 Mini gpt-5.4-mini No audit yet |
Winner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 88 6410086100 | GPT-5.4 Mini gpt-5.4-mini No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.6 | GPT-5.4 Mini |
|---|---|---|
25 tests | Claude Opus 4.6 speed / latency N/A / N/A input / output No data | GPT-5.4 Mini speed / latency 139 tok/s / 2844ms input / output No data |
22 tests | Claude Opus 4.6 speed / latency 39 tok/s / 9397ms input / output No data | GPT-5.4 Mini speed / latency 108 tok/s / 1950ms input / output No data |
20 tests | Claude Opus 4.6 speed / latency 40 tok/s / 16141ms input / output No data | GPT-5.4 Mini speed / latency N/A / N/A input / output No data |
20 tests | Claude Opus 4.6 speed / latency 42 tok/s / 2282ms input / output No data | GPT-5.4 Mini speed / latency N/A / N/A input / output No data |
15 tests | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data | GPT-5.4 Mini speed / latency N/A / N/A input / output No data |
Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/M/$0/M | GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $0/M | |
Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/request | GPT-5.4 Mini gpt-5.4-mini 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 |
|---|
