Data points: 133
Model compare
The readout for Claude Sonnet 4.6 and GPT-5.2, before the detailed comparison sheet.
Weighted outcome: GPT-5.2. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.2
GPT-5.2 has the higher weighted result; Model A / B score 34.3 to 65.7.
Evidence depth
133 data points
Includes 32 benchmark rows, 1 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 41 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-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Sonnet 4.6 | GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 34.3 pts | 65.7 pts |
| Benchmark category leads | 3 categories | 4 categories |
| Operational advantages | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage |
| Context window | 1M tokens | 400K 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 Sonnet 4.6 | GPT-5.2 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Feb 2026 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-sonnet-4.6 | openai/gpt-5.2 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Sonnet 4.6 and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Sonnet 4.6
Claude Sonnet 4.6 leads these benchmark categories: Agents, Knowledge, Multimodal.
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Coding, Reasoning, Math, Instruction following) and operational dimensions (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 4.6
53.2
Avg. score
GPT-5.2
52.8
Claude Sonnet 4.6 leads by 5.3
GPT-5.2 leads by 0.4
GPT-5.2 leads by 4.4
Claude Sonnet 4.6 leads by 13.8
GPT-5.2 leads by 2.7
No data
Claude Sonnet 4.6 leads by 1.7
GPT-5.2 leads by 11.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Sonnet 4.6
winner63.0
Rank #25/84 · confidence 3 · eval date 2026-02-01
GPT-5.2
53.0
Rank #50/84 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
$3.00/M
Rank #137/162 · confidence 4
GPT-5.2
winner$1.75/M
Rank #120/162 · confidence 4
Claude Sonnet 4.6
$6.00/M
Rank #137/162 · confidence 4
GPT-5.2
winner$4.81/M
Rank #132/162 · confidence 4
Claude Sonnet 4.6
$15.00/M
Rank #136/162 · confidence 4
GPT-5.2
winner$14.00/M
Rank #133/162 · confidence 4
Claude Sonnet 4.6
57.7
Rank #63/89 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner72.7
Rank #13/89 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
0.9
Rank #60/73 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner11.6
Rank #20/73 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner87.5%
Rank #31/188 · confidence 4
GPT-5.2
71.2%
Rank #110/188 · confidence 4
Claude Sonnet 4.6
winner30.0%
Rank #31/187 · confidence 4
GPT-5.2
7.3%
Rank #109/187 · confidence 4
Claude Sonnet 4.6
79.2%
Rank #68/125 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner81.4%
Rank #54/125 · confidence 4
Claude Sonnet 4.6
51.5
Rank #7/33 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner53.5
Rank #6/33 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner63.7
Rank #8/65 · confidence 3 · eval date 2026-02-01
GPT-5.2
52.2
Rank #34/65 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
79.6
Rank #13/43 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner80.0
Rank #12/43 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
46.9
Rank #33/96 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner52.1
Rank #18/96 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner46.8%
Rank #29/185 · confidence 4
GPT-5.2
40.4%
Rank #64/185 · confidence 4
Claude Sonnet 4.6
32.4
Rank #18/47 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner40.7
Rank #10/47 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
8.3
Rank #19/35 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner18.8
Rank #11/35 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
49.5
Rank #31/56 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner58.5
Rank #24/56 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
76.9
Rank #18/55 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner80.8
Rank #11/55 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
38.0
Rank #29/90 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner43.8
Rank #16/90 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
79.9
Rank #63/96 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner90.3
Rank #19/96 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
13.2
Rank #63/96 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner35.4
Rank #21/96 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
35.9
Rank #43/99 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner42.2
Rank #22/99 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
65.9
Rank #57/90 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner79.7
Rank #39/90 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
77.4
Rank #17/22 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner82.1
Rank #8/22 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner1314.0
Rank #8/66 · confidence 3 · eval date 2026-02-01
GPT-5.2
1224.0
Rank #37/66 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
57.5
Rank #25/35 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner70.3
Rank #11/35 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
41.2
Rank #69/86 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner75.4
Rank #21/86 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner36.9
Rank #5/20 · confidence 3 · eval date 2026-02-01
GPT-5.2
34.3
Rank #7/20 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner62.9
Rank #8/50 · confidence 3 · eval date 2026-02-01
GPT-5.2
46.5
Rank #29/50 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner72.1
Rank #11/21 · confidence 3 · eval date 2026-02-01
GPT-5.2
47.3
Rank #20/21 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
winner55.0
Rank #30/53 · confidence 3 · eval date 2026-02-01
GPT-5.2
22.0
Rank #48/53 · confidence 3 · eval date 2025-12-11
Claude Sonnet 4.6
79.5
Rank #55/84 · confidence 3 · eval date 2026-02-01
GPT-5.2
winner84.8
Rank #44/84 · confidence 3 · eval date 2025-12-11
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Sonnet 4.6 | GPT-5.2 |
|---|---|---|
Winner: Claude Sonnet 4.6 | Claude Sonnet 4.6 claude-sonnet-4-6 Audit score 89 56100100100 | GPT-5.2 gpt-5.2 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-5.2 |
|---|---|---|
25 tests | Claude Sonnet 4.6 speed / latency 40 tok/s / 3145ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
20 tests | Claude Sonnet 4.6 speed / latency 55 tok/s / 2094ms input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
15 tests | Claude Sonnet 4.6 speed / latency 41 tok/s / 3714ms input / output No data | GPT-5.2 speed / latency 64 tok/s / 5256ms input / output No data |
15 tests | Claude Sonnet 4.6 speed / latency 42 tok/s / 4504ms input / output No data | GPT-5.2 speed / latency 94 tok/s / 11492ms input / output No data |
15 tests | Claude Sonnet 4.6 speed / latency 31 tok/s / 4124ms input / output No data | GPT-5.2 speed / latency 71 tok/s / 2893ms input / output No data |
Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $24.09/M/$120.45/M | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $0/M | |
Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0/M/$0/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0/M | |
Claude Sonnet 4.6 claude-sonnet-4-6 speed / latency No data input / output $0/request | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $0/request |
Weighted outcome: GPT-5.2. 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 |
|---|
