Data points: 77
The readout for GPT-4 and GPT-5.2, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 1 to 5.
Evidence depth
77 data points
Includes 6 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 14 high-signal samples across speed, scores, and audit health.
Model compare GPT-4 vs GPT-5.2gpt-4-vs-gpt-5-2 | Model A GPT-4 | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 5 wins |
| Where it leads | First-token latency | Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests |
| Model metadata | GPT-4 exposes 8.2K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | OpenAI | OpenAI |
| Context window | 8.2K tokens | 128K tokens |
| Max output | 4.1K tokens | 16.4K tokens |
| Released | May 2023 | Dec 2025 |
| Modalities | Input Text Output Text | Input FileImageText Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2021-09-30 | No data |
| OpenRouter ID | openai/gpt-4 | openai/gpt-5.2-chat |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-4 | GPT-5.2 |
|---|---|---|
| Time to first answer token | 1.07 s#25 | 115.69 s#109 |
| Input price | $30.00/M#46 | $1.75/M#35 |
| Time to first token | 1.07 s#40 | 115.69 s#108 |
| Output price | $60.00/M#50 | $14.00/M#43 |
| Blended price | $37.50/M#75 | $4.81/M#62 |
| Output speed | 39.3 tok/s#101 | 72.8 tok/s#71 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4 | 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 | GPT-5.2 |
|---|---|---|
N1N15 tests | GPT-4 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
Rnglg2 API5 tests | GPT-4 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
WSocket AI5 tests | GPT-4 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 54 tok/s / 1449ms input / output No data |
Yun API5 tests | GPT-4 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 32 tok/s / 1965ms input / output No data |
小水管 API5 tests | GPT-4 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 71 tok/s / 2893ms input / output No data |
GPT-4 gpt-4-all speed / latency No data input / output $0.014/M / $0.014/M | GPT-5.2 gpt-5.2-openai-compact speed / latency No data input / output $10.27/M / $10.27/M | |
GPT-4 gpt-4-all speed / latency No data input / output $0.014/M / $0.014/M | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $0.240/M / $1.92/M | |
GPT-4 gpt-4-all speed / latency No data input / output $0.014/M / $0.014/M | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $0.240/M / $1.92/M |
This report only uses LMSpeed data for GPT-4 and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-4 | GPT-5.2 |
|---|---|---|
| When to choose each model | GPT-4 GPT-4 is stronger when you prioritize First-token latency. | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.2 leads across 77 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-4 vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
