Data points: 106
Model compare
The readout for Claude Sonnet 4 and GPT-4o, before the detailed comparison sheet.
Weighted outcome: Claude Sonnet 4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Sonnet 4
Claude Sonnet 4 has the higher weighted result; Model A / B score 80 to 20.
Evidence depth
106 data points
Includes 20 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with Claude Sonnet 4
The charts below split 27 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 Sonnet 4 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Sonnet 4 | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 80.0 pts | 20.0 pts |
| Benchmark category leads | 6 categories | 0 categories |
| Operational advantages | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage |
| Context window | 1M tokens | 128K tokens |
| Max output | 64K tokens | 16.4K tokens |
| Modalities | Input ImageTextFile 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 Sonnet 4 | GPT-4o |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | May 2025 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | 2025-01-31 | 2023-10-31 |
| OpenRouter ID | anthropic/claude-sonnet-4 | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for Claude Sonnet 4 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Sonnet 4
Claude Sonnet 4 leads these benchmark categories: Agents, Coding, Reasoning, Knowledge, Math.
GPT-4o
GPT-4o has these operational advantages: Cheapest input price, Average speed, First-token latency, 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 Sonnet 4
47.9
Avg. score
GPT-4o
43.2
Claude Sonnet 4 leads by 5.6
Claude Sonnet 4 leads by 0.5
Claude Sonnet 4 leads by 7.5
Claude Sonnet 4 leads by 0.4
Claude Sonnet 4 leads by 10.8
No data
No data
Claude Sonnet 4 leads by 3.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Sonnet 4
winner56.0
Rank #41/84 · confidence 1 · eval date 2025-05-01
GPT-4o
43.0
Rank #76/84 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
$15.00/M
Rank #136/162 · confidence 4
GPT-4o
winner$10.00/M
Rank #120/162 · confidence 4
Claude Sonnet 4
$6.00/M
Rank #137/162 · confidence 4
GPT-4o
winner$4.38/M
Rank #127/162 · confidence 4
Claude Sonnet 4
$3.00/M
Rank #137/162 · confidence 4
GPT-4o
winner$2.50/M
Rank #131/162 · confidence 4
Claude Sonnet 4
winner83.7%
Rank #32/125 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
Claude Sonnet 4
winner68.3%
Rank #117/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
Claude Sonnet 4
winner4.0%
Rank #162/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
Claude Sonnet 4
winner44.9%
Rank #66/115 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
Claude Sonnet 4
winner37.3
Rank #71/96 · confidence 1 · eval date 2025-05-01
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner37.3%
Rank #94/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
Claude Sonnet 4
winner93.4%
Rank #26/74 · confidence 4
GPT-4o
75.9%
Rank #56/74 · confidence 4
Claude Sonnet 4
winner40.7%
Rank #33/68 · confidence 4
GPT-4o
15.0%
Rank #50/68 · confidence 4
Claude Sonnet 4
winner25.5
Rank #64/99 · confidence 1 · eval date 2025-05-01
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner22.4
Rank #68/90 · confidence 1 · eval date 2025-05-01
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner40.8
Rank #73/90 · confidence 1 · eval date 2025-05-01
GPT-4o
37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner68.3
Rank #76/96 · confidence 1 · eval date 2025-05-01
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner4.0
Rank #89/96 · confidence 1 · eval date 2025-05-01
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner1170.0
Rank #49/66 · confidence 1 · eval date 2025-05-01
GPT-4o
856.0
Rank #65/66 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner45.4
Rank #60/86 · confidence 1 · eval date 2025-05-01
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
Claude Sonnet 4
winner52.3
Rank #67/84 · confidence 1 · eval date 2025-05-01
GPT-4o
25.1
Rank #75/84 · confidence 1 · eval date 2024-05-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Sonnet 4 | 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 Sonnet 4 | GPT-4o |
|---|---|---|
20 tests | Claude Sonnet 4 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
10 tests | Claude Sonnet 4 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 57 tok/s / 3381ms input / output No data |
5 tests | Claude Sonnet 4 speed / latency 27 tok/s / 1036ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
5 tests | Claude Sonnet 4 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 48 tok/s / 13138ms input / output No data |
5 tests | Claude Sonnet 4 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 58 tok/s / 2583ms input / output No data |
Claude Sonnet 4 claude-sonnet-4 speed / latency No data input / output $0.164/M/$0.822/M | GPT-4o gpt-4o speed / latency No data input / output $0/M | |
Claude Sonnet 4 claude-sonnet-4-20250514 speed / latency No data input / output $0/request | GPT-4o gpt-4o speed / latency No data input / output $0/request |
Weighted outcome: Claude Sonnet 4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
|---|
