Data points: 109
Model compare
The readout for GPT-4.1 Nano 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 12 to 88.
Evidence depth
109 data points
Includes 22 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 29 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 GPT-4.1 Nano and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4.1 Nano | GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 12.0 pts | 88.0 pts |
| Benchmark category leads | 0 categories | 6 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency | Free providers, Provider coverage |
| Context window | 1.0M tokens | 400K tokens |
| Max output | 32.8K tokens | 128K 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 | GPT-4.1 Nano | GPT-5.2 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Apr 2025 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-06-30 | No data |
| OpenRouter ID | openai/gpt-4.1-nano | openai/gpt-5.2 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4.1 Nano and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4.1 Nano
GPT-4.1 Nano has these operational advantages: Cheapest input price, Average speed, First-token latency.
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (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
GPT-4.1 Nano
37.9
Avg. score
GPT-5.2
52.8
GPT-5.2 leads by 15.2
GPT-5.2 leads by 15.9
GPT-5.2 leads by 16.6
GPT-5.2 leads by 23.1
GPT-5.2 leads by 10.7
No data
GPT-5.2
GPT-5.2 leads by 17.9
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4.1 Nano
48.0
Rank #63/84 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner53.0
Rank #50/84 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
winner$0.100/M
Rank #7/162 · confidence 4
GPT-5.2
$1.75/M
Rank #120/162 · confidence 4
GPT-4.1 Nano
winner$0.175/M
Rank #11/162 · confidence 4
GPT-5.2
$4.81/M
Rank #132/162 · confidence 4
GPT-4.1 Nano
winner$0.400/M
Rank #12/162 · confidence 4
GPT-5.2
$14.00/M
Rank #133/162 · confidence 4
GPT-4.1 Nano
17.0
Rank #88/89 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner72.7
Rank #13/89 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
65.7%
Rank #111/125 · confidence 4
GPT-5.2
winner81.4%
Rank #54/125 · confidence 4
GPT-4.1 Nano
3.9%
Rank #165/187 · confidence 4
GPT-5.2
winner7.3%
Rank #109/187 · confidence 4
GPT-4.1 Nano
51.2%
Rank #164/188 · confidence 4
GPT-5.2
winner71.2%
Rank #110/188 · confidence 4
GPT-4.1 Nano
25.9
Rank #91/96 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner52.1
Rank #18/96 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
32.6%
Rank #84/115 · confidence 4
GPT-5.2
winner66.9%
Rank #36/115 · confidence 4
GPT-4.1 Nano
25.9%
Rank #156/185 · confidence 4
GPT-5.2
winner40.4%
Rank #64/185 · confidence 4
GPT-4.1 Nano
1.0
Rank #45/47 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner40.7
Rank #10/47 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
25.7
Rank #53/56 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner58.5
Rank #24/56 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
38.8
Rank #53/55 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner80.8
Rank #11/55 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
13.3
Rank #88/90 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner43.8
Rank #16/90 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
51.2
Rank #93/96 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner90.3
Rank #19/96 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
3.9
Rank #91/96 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner35.4
Rank #21/96 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
9.6
Rank #94/99 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner42.2
Rank #22/99 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
winner80.4
Rank #36/90 · confidence 1 · eval date 2025-04-14
GPT-5.2
79.7
Rank #39/90 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
1003.0
Rank #61/66 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner1224.0
Rank #37/66 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
32.0
Rank #83/86 · confidence 1 · eval date 2025-04-14
GPT-5.2
winner75.4
Rank #21/86 · confidence 3 · eval date 2025-12-11
GPT-4.1 Nano
17.3
Rank #82/84 · confidence 1 · eval date 2025-04-14
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 | GPT-4.1 Nano | 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 | GPT-4.1 Nano | GPT-5.2 |
|---|---|---|
75 tests | GPT-4.1 Nano speed / latency 127 tok/s / 2007ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
25 tests | GPT-4.1 Nano speed / latency 162 tok/s / 1284ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
15 tests | GPT-4.1 Nano speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
5 tests | GPT-4.1 Nano speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 64 tok/s / 3553ms input / output No data |
5 tests | GPT-4.1 Nano speed / latency 222 tok/s / 800ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
GPT-4.1 Nano gpt-4.1-nano speed / latency No data input / output $0/request | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $0/request | |
GPT-4.1 Nano gpt-4.1-nano-2025-04-14 speed / latency No data input / output $0.0024/M/$0.0096/M | GPT-5.2 gpt-5.2-chat speed / latency No data input / output $1.20/M |
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 mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
