Data points: 138
Model compare
The readout for Claude Opus 4.5 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 49.7 to 50.3.
Evidence depth
138 data points
Includes 37 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 44 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 Opus 4.5 and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Opus 4.5 | GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 49.7 pts | 50.3 pts |
| Benchmark category leads | 4 categories | 3 categories |
| Operational advantages | First-token latency | Cheapest input price, Average speed, Free providers, Provider coverage |
| Context window | 200K tokens | 400K tokens |
| Max output | 64K tokens | 128K tokens |
| Modalities | Input FileImageText 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 Opus 4.5 | GPT-5.2 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Nov 2025 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-opus-4.5 | openai/gpt-5.2 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Opus 4.5 and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Opus 4.5
Claude Opus 4.5 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge) and operational dimensions (First-token latency).
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Math, Multimodal, Instruction following) 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 Opus 4.5
50.7
Avg. score
GPT-5.2
52.9
Claude Opus 4.5 leads by 1.7
Claude Opus 4.5 leads by 0.6
Claude Opus 4.5 leads by 8.1
Claude Opus 4.5 leads by 0.7
GPT-5.2 leads by 6.1
Claude Opus 4.5
GPT-5.2 leads by 11.7
GPT-5.2 leads by 9.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Opus 4.5
winner59.0
Rank #31/84 · confidence 4 · eval date 2025-11-01
GPT-5.2
53.0
Rank #50/84 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
$5.00/M
Rank #146/162 · confidence 4
GPT-5.2
winner$1.75/M
Rank #120/162 · confidence 4
Claude Opus 4.5
$10.00/M
Rank #147/162 · confidence 4
GPT-5.2
winner$4.81/M
Rank #132/162 · confidence 4
Claude Opus 4.5
$25.00/M
Rank #147/162 · confidence 4
GPT-5.2
winner$14.00/M
Rank #133/162 · confidence 4
Claude Opus 4.5
winner93.8
Rank #2/25 · confidence 4 · eval date 2025-11-01
GPT-5.2
61.4
Rank #22/25 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner88.9%
Rank #4/125 · confidence 4
GPT-5.2
81.4%
Rank #54/125 · confidence 4
Claude Opus 4.5
65.3
Rank #44/89 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner72.7
Rank #13/89 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
0.3
Rank #68/73 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner11.6
Rank #20/73 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner81.0%
Rank #73/188 · confidence 4
GPT-5.2
71.2%
Rank #110/188 · confidence 4
Claude Opus 4.5
winner12.9%
Rank #80/187 · confidence 4
GPT-5.2
7.3%
Rank #109/187 · confidence 4
Claude Opus 4.5
winner80.9
Rank #6/43 · confidence 4 · eval date 2025-11-01
GPT-5.2
80.0
Rank #12/43 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
47.0
Rank #31/96 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner52.1
Rank #18/96 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner57.1
Rank #19/37 · confidence 4 · eval date 2025-11-01
GPT-5.2
55.6
Rank #25/37 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner73.8%
Rank #24/115 · confidence 4
GPT-5.2
66.9%
Rank #36/115 · confidence 4
Claude Opus 4.5
winner47.0%
Rank #25/185 · confidence 4
GPT-5.2
40.4%
Rank #64/185 · confidence 4
Claude Opus 4.5
winner54.2
Rank #31/65 · confidence 4 · eval date 2025-11-01
GPT-5.2
52.2
Rank #34/65 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
20.7
Rank #29/47 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner40.7
Rank #10/47 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
4.2
Rank #23/35 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner18.8
Rank #11/35 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner58.6
Rank #23/56 · confidence 4 · eval date 2025-11-01
GPT-5.2
58.5
Rank #24/56 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
60.9
Rank #38/55 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner80.8
Rank #11/55 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
40.7
Rank #20/90 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner43.8
Rank #16/90 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
81.0
Rank #60/96 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner90.3
Rank #19/96 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
12.9
Rank #65/96 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner35.4
Rank #21/96 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
34.7
Rank #48/99 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner42.2
Rank #22/99 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
75.4
Rank #45/90 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner79.7
Rank #39/90 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
68.5
Rank #20/22 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner82.1
Rank #8/22 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
74.3
Rank #11/11 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner83.0
Rank #10/11 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
70.6
Rank #25/27 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner79.5
Rank #10/27 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
67.0
Rank #11/11 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner75.9
Rank #10/11 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
29.4
Rank #33/35 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner70.3
Rank #11/35 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner1272.0
Rank #24/66 · confidence 4 · eval date 2025-11-01
GPT-5.2
1219.0
Rank #35/66 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
43.0
Rank #64/86 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner75.4
Rank #21/86 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner64.2
Rank #6/50 · confidence 4 · eval date 2025-11-01
GPT-5.2
46.5
Rank #29/50 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
32.3
Rank #9/20 · confidence 4 · eval date 2025-11-01
GPT-5.2
winner34.3
Rank #7/20 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner66.3
Rank #14/21 · confidence 4 · eval date 2025-11-01
GPT-5.2
47.3
Rank #20/21 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner48.2
Rank #36/53 · confidence 4 · eval date 2025-11-01
GPT-5.2
22.0
Rank #48/53 · confidence 3 · eval date 2025-12-11
Claude Opus 4.5
winner86.3
Rank #39/84 · confidence 4 · eval date 2025-11-01
GPT-5.2
84.8
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 Opus 4.5 | GPT-5.2 |
|---|---|---|
| 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 Opus 4.5 | GPT-5.2 |
|---|---|---|
30 tests | Claude Opus 4.5 speed / latency 56 tok/s / 2598ms input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
10 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 94 tok/s / 11492ms input / output No data |
10 tests | Claude Opus 4.5 speed / latency 70 tok/s / 4078ms input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
10 tests | Claude Opus 4.5 speed / latency 53 tok/s / 2305ms input / output No data | GPT-5.2 speed / latency 64 tok/s / 2953ms input / output No data |
5 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 64 tok/s / 3553ms input / output No data |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $40.15/M/$200.75/M | GPT-5.2 gpt-5.2-2025-12-11 speed / latency No data input / output $0/M | |
Claude Opus 4.5 claude-opus-4-5 speed / latency No data input / output $0/request | GPT-5.2 gpt-5.2 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 |
|---|
