Data points: 92
Model compare
The readout for Claude Opus 4.6 and GPT-5.4 Pro, before the detailed comparison sheet.
Weighted outcome: GPT-5.4 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4 Pro
GPT-5.4 Pro has the higher weighted result; Model A / B score 20 to 80.
Evidence depth
92 data points
Includes 15 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.4 Pro
The charts below split 22 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 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Opus 4.6 | GPT-5.4 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 20.0 pts | 80.0 pts |
| Benchmark category leads | 0 categories | 5 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 1M tokens | 1.1M 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 Pro |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Feb 2026 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-opus-4.6 | openai/gpt-5.4-pro |
| References | No data | No data |
This report only uses LMSpeed data for Claude Opus 4.6 and GPT-5.4 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Opus 4.6
Claude Opus 4.6 has these operational advantages: Cheapest input price, Free providers, Provider coverage.
GPT-5.4 Pro
GPT-5.4 Pro leads these benchmark categories: Agents, Reasoning, Knowledge, Math, Multimodal.
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 Pro
62.3
GPT-5.4 Pro leads by 4.5
Claude Opus 4.6
GPT-5.4 Pro leads by 5.6
GPT-5.4 Pro leads by 8.0
GPT-5.4 Pro leads by 0.3
Claude Opus 4.6
GPT-5.4 Pro leads by 24.1
Claude Opus 4.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Opus 4.6
68.0
Rank #17/84 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner80.0
Rank #3/84 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
winner$5.00/M
Rank #146/162 · confidence 4
GPT-5.4 Pro
$30.00/M
Rank #160/162 · confidence 4
Claude Opus 4.6
winner$10.00/M
Rank #147/162 · confidence 4
GPT-5.4 Pro
$67.50/M
Rank #161/162 · confidence 4
Claude Opus 4.6
winner$25.00/M
Rank #147/162 · confidence 4
GPT-5.4 Pro
$180.00/M
Rank #161/162 · confidence 4
Claude Opus 4.6
18.6%
Rank #62/187 · confidence 4
GPT-5.4 Pro
winner58.7%
Rank #1/187 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
2.8
Rank #43/73 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner30.0
Rank #3/73 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
22.9
Rank #10/35 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner37.5
Rank #5/35 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
40.7
Rank #10/47 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner50.0
Rank #6/47 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
59.8
Rank #22/56 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner70.8
Rank #15/56 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
82.6
Rank #8/55 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner88.0
Rank #1/55 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
40.0
Rank #10/15 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner42.7
Rank #7/15 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
77.3
Rank #20/27 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner94.0
Rank #1/27 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
62.1
Rank #23/35 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner89.0
Rank #3/35 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
83.7
Rank #9/25 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner89.3
Rank #4/25 · confidence 2 · eval date 2026-03-05
Claude Opus 4.6
65.3
Rank #22/53 · confidence 3 · eval date 2026-02-01
GPT-5.4 Pro
winner81.7
Rank #11/53 · confidence 2 · eval date 2026-03-05
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.6 | GPT-5.4 Pro |
|---|---|---|
| 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 Opus 4.6 | GPT-5.4 Pro |
|---|---|---|
10 tests | Claude Opus 4.6 speed / latency 51 tok/s / 9040ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | Claude Opus 4.6 speed / latency 43 tok/s / 2285ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | Claude Opus 4.6 speed / latency 27 tok/s / 15402ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | Claude Opus 4.6 speed / latency 46 tok/s / 2559ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | Claude Opus 4.6 speed / latency 43 tok/s / 1437ms input / output No data | GPT-5.4 Pro 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/request | GPT-5.4 Pro gpt-5.4-pro speed / latency No data input / output $0/request | |
Claude Opus 4.6 claude-opus-4-6-c speed / latency No data input / output $0.0082/request | GPT-5.4 Pro gpt-5.4-pro speed / latency No data input / output $69.86/M |
Weighted outcome: GPT-5.4 Pro. 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 |
|---|
