Data points: 82
Model compare
The readout for Claude Sonnet 4.6 and GPT-4, before the detailed comparison sheet.
Weighted outcome: Claude Sonnet 4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Sonnet 4.6
Claude Sonnet 4.6 has the higher weighted result; Model A / B score 92 to 8.
Evidence depth
82 data points
Includes 6 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with Claude Sonnet 4.6
The charts below split 14 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 4.6 and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Sonnet 4.6 | GPT-4 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 92.0 pts | 8.0 pts |
| Benchmark category leads | 1 categories | 0 categories |
| Operational advantages | Cheapest input price, Average speed, Provider coverage | First-token latency, Free providers |
| Context window | 1M tokens | 8.2K tokens |
| Max output | 128K tokens | 4.1K 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 Sonnet 4.6 | GPT-4 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Feb 2026 | May 2023 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2021-09-30 |
| OpenRouter ID | anthropic/claude-sonnet-4.6 | openai/gpt-4 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Sonnet 4.6 and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Sonnet 4.6
Claude Sonnet 4.6 is stronger in benchmark categories (Coding) and operational dimensions (Cheapest input price, Average speed, Provider coverage).
GPT-4
GPT-4 has these operational advantages: First-token latency, Free providers.
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 4.6
54
Avg. score
GPT-4
49.5
Claude Sonnet 4.6
Claude Sonnet 4.6 leads by 7.4
Claude Sonnet 4.6
Claude Sonnet 4.6
Claude Sonnet 4.6
Claude Sonnet 4.6
Claude Sonnet 4.6
Claude Sonnet 4.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Sonnet 4.6
74.36 s
Rank #130/139 · confidence 4
GPT-4
winner0.87 s
Rank #29/139 · confidence 4
Claude Sonnet 4.6
74.36 s
Rank #134/139 · confidence 4
GPT-4
winner0.87 s
Rank #44/139 · confidence 4
Claude Sonnet 4.6
winner77.1 tok/s
Rank #84/139 · confidence 4
GPT-4
37.0 tok/s
Rank #130/139 · confidence 4
Claude Sonnet 4.6
winner$15.00/M
Rank #138/163 · confidence 4
GPT-4
$60.00/M
Rank #156/163 · confidence 4
Claude Sonnet 4.6
winner$6.00/M
Rank #139/163 · confidence 4
GPT-4
$37.50/M
Rank #161/163 · confidence 4
Claude Sonnet 4.6
winner$3.00/M
Rank #139/163 · confidence 4
GPT-4
$30.00/M
Rank #161/163 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Sonnet 4.6 | GPT-4 |
|---|---|---|
Winner: Claude Sonnet 4.6 | Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 89 56100100100 | GPT-4 gpt-4 No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Sonnet 4.6 | GPT-4 |
|---|---|---|
10 tests | Claude Sonnet 4.6 speed / latency 31 tok/s / 4124ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
5 tests | Claude Sonnet 4.6 speed / latency 55 tok/s / 2094ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
5 tests | Claude Sonnet 4.6 speed / latency 47 tok/s / 1068ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
5 tests | Claude Sonnet 4.6 speed / latency 20 tok/s / 8427ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
0 tests | Claude Sonnet 4.6 speed / latency N/A / N/A input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0/request | GPT-4 gpt-4-32k speed / latency No data input / output $0/request | |
Claude Sonnet 4.6 claude-sonnet-4-6-c speed / latency No data input / output $0.0082/request | GPT-4 gpt-4 speed / latency No data input / output $55.89/M |
Weighted outcome: Claude Sonnet 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 inputText outputTool callingStructured outputsJSON mode |
|---|
