Data points: 83
Model compare
The readout for Claude 3.5 Sonnet and GPT-4o, before the detailed comparison sheet.
Weighted outcome: Claude 3.5 Sonnet. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude 3.5 Sonnet
Claude 3.5 Sonnet has the higher weighted result; Model A / B score 57.3 to 42.7.
Evidence depth
83 data points
Includes 13 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with Claude 3.5 Sonnet
The charts below split 21 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 3.5 Sonnet and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude 3.5 Sonnet | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 57.3 pts | 42.7 pts |
| Benchmark category leads | 2 categories | 1 categories |
| Operational advantages | First-token latency | Cheapest input price, Average speed, Free providers, Provider coverage |
| Context window | No data | 128K tokens |
| Max output | No data | 16.4K 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 3.5 Sonnet | GPT-4o |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | No data | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | No data | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for Claude 3.5 Sonnet and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude 3.5 Sonnet
Claude 3.5 Sonnet is stronger in benchmark categories (Reasoning, Math) and operational dimensions (First-token latency).
GPT-4o
GPT-4o is stronger in benchmark categories (Coding) and operational dimensions (Cheapest input price, Average speed, 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 3.5 Sonnet
41.4
Avg. score
GPT-4o
43.2
GPT-4o
GPT-4o leads by 9.9
Claude 3.5 Sonnet leads by 4.4
GPT-4o
Claude 3.5 Sonnet leads by 0.7
No data
No data
GPT-4o
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude 3.5 Sonnet
winner44.0
Rank #72/84 · confidence 1 · eval date 2024-06-01
GPT-4o
43.0
Rank #76/84 · confidence 1 · eval date 2024-05-13
Claude 3.5 Sonnet
$15.00/M
Rank #136/162 · confidence 4
GPT-4o
winner$10.00/M
Rank #120/162 · confidence 4
Claude 3.5 Sonnet
$6.00/M
Rank #137/162 · confidence 4
GPT-4o
winner$4.38/M
Rank #127/162 · confidence 4
Claude 3.5 Sonnet
$3.00/M
Rank #137/162 · confidence 4
GPT-4o
winner$2.50/M
Rank #131/162 · confidence 4
Claude 3.5 Sonnet
winner77.2%
Rank #78/125 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
Claude 3.5 Sonnet
winner59.9%
Rank #141/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
Claude 3.5 Sonnet
winner3.9%
Rank #165/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
Claude 3.5 Sonnet
winner38.1%
Rank #77/115 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
Claude 3.5 Sonnet
winner36.6%
Rank #100/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
Claude 3.5 Sonnet
winner2.1
Rank #43/47 · confidence 1 · eval date 2024-06-01
GPT-4o
0.3
Rank #47/47 · confidence 1 · eval date 2024-05-13
Claude 3.5 Sonnet
winner15.7%
Rank #49/68 · confidence 4
GPT-4o
15.0%
Rank #50/68 · confidence 4
Claude 3.5 Sonnet
winner25.9
Rank #52/56 · confidence 1 · eval date 2024-06-01
GPT-4o
25.4
Rank #54/56 · confidence 1 · eval date 2024-05-13
Claude 3.5 Sonnet
winner77.1%
Rank #54/74 · confidence 4
GPT-4o
75.9%
Rank #56/74 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude 3.5 Sonnet | GPT-4o |
|---|---|---|
| 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 3.5 Sonnet | GPT-4o |
|---|---|---|
15 tests | Claude 3.5 Sonnet speed / latency 31 tok/s / 3217ms input / output No data | GPT-4o speed / latency 99 tok/s / 2367ms input / output No data |
10 tests | Claude 3.5 Sonnet speed / latency 39 tok/s / 4753ms input / output No data | GPT-4o speed / latency 135 tok/s / 1427ms input / output No data |
3 tests | Claude 3.5 Sonnet speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 40 tok/s / 2993ms input / output No data |
0 tests | Claude 3.5 Sonnet speed / latency N/A / N/A input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
0 tests | Claude 3.5 Sonnet speed / latency N/A / N/A input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
Claude 3.5 Sonnet claude-3-5-sonnet-20240620 speed / latency No data input / output $0.0086/M/$0.043/M | GPT-4o gpt-4o speed / latency No data input / output $0.714/M | |
Claude 3.5 Sonnet claude-3-5-sonnet-all speed / latency No data input / output $0.011/request | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $5.00/M | |
Claude 3.5 Sonnet claude-3-5-sonnet-all speed / latency No data input / output $0.0088/request | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $5.00/M |
Weighted outcome: Claude 3.5 Sonnet. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
|---|
