Model comparison
GPT-5.2 Pro vs Kimi K2.5 Instant
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 42.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in math, where GPT-5.2 Pro leads 64.8 to 36.6.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| GPT-5.2 Pro | Kimi K2.5 Instant | |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 52.2 | 42.9 |
| Released | 2025-12-11 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $21 | — |
| Output $ / M tokens | $168 | — |
| Results tracked | 8 | 18 |
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Category by category
Coding Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 42.3 (#95)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena WebDev | — | 1404 |
| LMArena Coding | — | 1483 |
Reasoning GPT-5.2 Pro leads
GPT-5.2 Pro: 51.8 (#31), Kimi K2.5 Instant: 28.5 (#88)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| ARC-AGI-2 | 54.2% | — |
| SimpleBench | 57.4% | — |
| NYT Connections (extended) | 79.3% | — |
| ARC-AGI-1 | 90.5% | — |
| LMArena Hard Prompts | — | 1443 |
| Epoch Capabilities Index | 155.41 | — |
Math GPT-5.2 Pro leads
GPT-5.2 Pro: 64.8 (#23), Kimi K2.5 Instant: 36.6 (#105)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | — |
| FrontierMath Tier 4 | 46% | — |
| LMArena Math | — | 1443 |
| FrontierMath Tier 4 (v1) | 31.3% | — |
Knowledge Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 39.5 (#121)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | — | 1438 |
Multimodal Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 39.5 (#47)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |
Multilingual Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 52.2 (#89)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | — | 1406 |
| LMArena Chinese | — | 1450 |
| LMArena French | — | 1403 |
| LMArena German | — | 1413 |
| LMArena Korean | — | 1378 |
| LMArena Russian | — | 1404 |
| LMArena Spanish | — | 1448 |
Instruction Following Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 75.5 (#61)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | — | 1430 |
Long Context Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 43.8 (#82)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | — | 1435 |
Writing & Preference Not comparable
GPT-5.2 Pro: —, Kimi K2.5 Instant: 60.8 (#91)
| Benchmark | GPT-5.2 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | — | 1420 |
| LMArena Creative Writing | — | 1379 |
| LMArena Multi-Turn | — | 1427 |
Frequently asked questions
Is GPT-5.2 Pro better than Kimi K2.5 Instant?
GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 42.9 on the Noometry Index.
How many benchmarks do GPT-5.2 Pro and Kimi K2.5 Instant share?
0 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and Kimi K2.5 Instant has 18.