Data points: 85
Model compare
The readout for Claude 3 Opus and GPT-5, before the detailed comparison sheet.
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5
GPT-5 has the higher weighted result; Model A / B score 20 to 80.
Evidence depth
85 data points
Includes 15 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5
The charts below split 23 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 GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude 3 Opus | GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 20.0 pts | 80.0 pts |
| Benchmark category leads | 1 categories | 3 categories |
| Operational advantages | No data | Cheapest input price, Free providers, Provider coverage |
| Context window | No data | 400K 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 | GPT-5 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | No data | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | No data | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for Claude 3 Opus and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude 3 Opus
Claude 3 Opus leads these benchmark categories: Knowledge.
GPT-5
GPT-5 is stronger in benchmark categories (Coding, Reasoning, 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
44.3
Avg. score
GPT-5
51.9
GPT-5
GPT-5 leads by 10.7
GPT-5 leads by 9.8
Claude 3 Opus leads by 5.5
GPT-5 leads by 20.2
No data
No data
GPT-5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude 3 Opus
$15.00/M
Rank #155/162 · confidence 4
GPT-5
winner$1.25/M
Rank #107/162 · confidence 4
Claude 3 Opus
$30.00/M
Rank #156/162 · confidence 4
GPT-5
winner$3.44/M
Rank #117/162 · confidence 4
Claude 3 Opus
$75.00/M
Rank #157/162 · confidence 4
GPT-5
winner$10.00/M
Rank #120/162 · confidence 4
Claude 3 Opus
69.6%
Rank #102/125 · confidence 4
GPT-5
winner80.6%
Rank #57/125 · confidence 4
Claude 3 Opus
48.9%
Rank #166/188 · confidence 4
GPT-5
winner67.3%
Rank #121/188 · confidence 4
Claude 3 Opus
3.1%
Rank #184/187 · confidence 4
GPT-5
winner5.4%
Rank #132/187 · confidence 4
Claude 3 Opus
19.5
Rank #55/59 · confidence 1 · eval date 2024-03-01
GPT-5
winner37.8
Rank #41/59 · confidence 1 · eval date 2025-08-07
Claude 3 Opus
23.3
Rank #93/96 · confidence 1 · eval date 2024-03-01
GPT-5
winner42.9
Rank #46/96 · confidence 1 · eval date 2025-08-07
Claude 3 Opus
27.9%
Rank #93/115 · confidence 4
GPT-5
winner55.8%
Rank #49/115 · confidence 4
Claude 3 Opus
23.3%
Rank #164/185 · confidence 4
GPT-5
winner38.8%
Rank #83/185 · confidence 4
Claude 3 Opus
3.3%
Rank #62/68 · confidence 4
GPT-5
winner36.7%
Rank #35/68 · confidence 4
Claude 3 Opus
64.1%
Rank #66/74 · confidence 4
GPT-5
winner86.1%
Rank #42/74 · confidence 4
Claude 3 Opus
3.1
Rank #96/96 · confidence 1 · eval date 2024-03-01
GPT-5
winner26.5
Rank #39/96 · confidence 1 · eval date 2025-08-07
Claude 3 Opus
48.9
Rank #94/96 · confidence 1 · eval date 2024-03-01
GPT-5
winner85.4
Rank #45/96 · confidence 1 · eval date 2025-08-07
Claude 3 Opus
11.8
Rank #89/99 · confidence 1 · eval date 2024-03-01
GPT-5
winner34.7
Rank #48/99 · confidence 1 · eval date 2025-08-07
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude 3 Opus | GPT-5 |
|---|---|---|
| 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 | GPT-5 |
|---|---|---|
0 tests | Claude 3 Opus speed / latency N/A / N/A input / output No data | GPT-5 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 | GPT-5 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 | GPT-5 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 | GPT-5 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 | GPT-5 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 | GPT-5 gpt-5 speed / latency No data input / output $0.171/M | |
Claude 3 Opus claude-3-opus-20240229 speed / latency No data input / output $1.82/M/$9.11/M | GPT-5 gpt-5-chat speed / latency No data input / output $0.277/M | |
Claude 3 Opus claude-3-opus-20240229 speed / latency No data input / output $18.00/M/$90.00/M | GPT-5 gpt-5 speed / latency No data input / output $0.438/M |
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
