Data points: 81
The readout for GPT-5.2 and Kimi K2 Thinking, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 5 to 1.
Evidence depth
81 data points
Includes 8 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 17 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.2 vs Kimi K2 Thinkinggpt-5-2-vs-kimi-k2-thinking | Model A GPT-5.2 | Model B Kimi K2 Thinking |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 5 wins | 1 wins |
| Where it leads | Cheapest input price, Average speed, First-token latency, Provider coverage, Recent tests | Free providers |
| Model metadata | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. | Kimi K2 Thinking exposes 262.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
| Developer | OpenAI | Moonshot AI |
| Context window | 128K tokens | 262.1K tokens |
| Max output | 16.4K tokens | 262.1K tokens |
| Released | Dec 2025 | Nov 2025 |
| Modalities | Input FileImageText Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode | Text inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | GPT | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.2-chat | moonshotai/kimi-k2-thinking |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-5.2 | Kimi K2 Thinking |
|---|---|---|
| LiveCodeBench | 88.9%#4 | 85.3%#9 |
| MMLU-Pro | 87.4%#6 | 84.8%#19 |
| GPQA | 90.3%#9 | 83.8%#39 |
| HLE | 35.4%#9 | 22.3%#35 |
| SciCode | 52.1%#9 | 42.4%#35 |
| Input price | $1.75/M#35 | $0.600/M#23 |
| Output price | $14.00/M#43 | $2.50/M#27 |
| Time to first token | 115.69 s#108 | 0.93 s#33 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.2 | Kimi K2 Thinking |
|---|---|---|
| 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-5.2 | Kimi K2 Thinking |
|---|---|---|
星见雅 API15 tests | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data | Kimi K2 Thinking speed / latency N/A / N/A input / output No data |
WONG公益站10 tests | GPT-5.2 speed / latency 64 tok/s / 2953ms input / output No data | Kimi K2 Thinking speed / latency 45 tok/s / 7512ms input / output No data |
Rnglg2 API5 tests | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data | Kimi K2 Thinking speed / latency N/A / N/A input / output No data |
WSocket AI5 tests | GPT-5.2 speed / latency 54 tok/s / 1449ms input / output No data | Kimi K2 Thinking speed / latency N/A / N/A input / output No data |
Yun API5 tests | GPT-5.2 gpt-5.2 speed / latency 32 tok/s / 1965ms input / output $0.0027/M / $0.0027/M | Kimi K2 Thinking kimi-k2-thinking speed / latency N/A / N/A input / output $0.548/M / $2.19/M |
GPT-5.2 gpt-5.2 speed / latency No data input / output $2.00/M / $16.00/M | Kimi K2 Thinking daipai/moonshotai/kimi-k2-thinking speed / latency No data input / output $0.0010/M / $0.0010/M | |
GPT-5.2 gpt-5.2-all speed / latency No data input / output $0.0068/M / $0.0068/M | Kimi K2 Thinking kimi-k2-thinking speed / latency No data input / output $0.548/M / $2.19/M | |
GPT-5.2 gpt-5.2-all speed / latency No data input / output $0.0068/M / $0.0068/M | Kimi K2 Thinking kimi-k2-thinking speed / latency No data input / output $0.548/M / $2.19/M | |
GPT-5.2 gpt-5.2 speed / latency No data input / output $0.010/M / $0.010/M | Kimi K2 Thinking kimi-k2-thinking(次模型) speed / latency No data input / output $0.100/M / $0.100/M |
This report only uses LMSpeed data for GPT-5.2 and Kimi K2 Thinking: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.2 | Kimi K2 Thinking |
|---|---|---|
| When to choose each model | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Provider coverage, Recent tests. | Kimi K2 Thinking Kimi K2 Thinking is stronger when you prioritize Free providers. |
TL;DR: GPT-5.2 leads across 81 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.2 vs Kimi K2 Thinking 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.
