Model comparison
GPT-4 vs Kimi K2.5 Instant
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 29.1 on the Noometry Index.
Last verified . 16 shared benchmarks.
Summary
- They share 16 benchmarks with published results for both. GPT-4 scores higher in 0 categories and Kimi K2.5 Instant in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.5 Instant leads 39.4 to 10.8.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| GPT-4 | Kimi K2.5 Instant | |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 29.1 | 43.6 |
| Released | 2023-03-14 | — |
| Weights | Proprietary | Open |
| Context window | 8K | — |
| Max output | 8K | — |
| Input $ / M tokens | $30 | — |
| Output $ / M tokens | $60 | — |
| Results tracked | 38 | 18 |
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Category by category
Coding Kimi K2.5 Instant leads
GPT-4: 31.6 (#283), Kimi K2.5 Instant: 42.6 (#97)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Coding | 1254 | 1484 |
| LMArena WebDev | — | 1404 |
| WeirdML | 12.4% | — |
| BigCodeBench Instruct | 46% | — |
| BigCodeBench Complete | 57.2% | — |
| HumanEval+ | 79.3% | — |
Agentic & Tool Use Not comparable
GPT-4: —, Kimi K2.5 Instant: —
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| METR Time Horizons | 36.1% | — |
Reasoning Kimi K2.5 Instant leads
GPT-4: 17.8 (#289), Kimi K2.5 Instant: 29.7 (#90)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1241 | 1443 |
| Chess Puzzles | 4% | — |
| Mystery Game Puzzles | 12% | — |
| DTBench | 62.7% | — |
| LMCA | 17.1% | — |
| BIG-Bench Hard | 75.1% | — |
| Epoch Capabilities Index | 125.89 | — |
| ForecastBench | 57.8 | — |
| HellaSwag | 95.3% | — |
| WinoGrande | 87.5% | — |
Math Kimi K2.5 Instant leads
GPT-4: 10.8 (#309), Kimi K2.5 Instant: 39.4 (#105)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1269 | 1442 |
| OTIS Mock AIME 2024-2025 | 1.1% | — |
| MATH Level 5 | 23% | — |
| GSM8K | 92% | — |
Knowledge Kimi K2.5 Instant leads
GPT-4: 18.4 (#282), Kimi K2.5 Instant: 40.2 (#123)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1211 | 1440 |
| GPQA Diamond | 35.7% | — |
| MMLU | 86.4% | — |
| TriviaQA | 84.8% | — |
Multimodal Not comparable
GPT-4: —, Kimi K2.5 Instant: 40.2 (#50)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |
Multilingual Kimi K2.5 Instant leads
GPT-4: 40.6 (#215), Kimi K2.5 Instant: 52.0 (#94)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1246 | 1406 |
| LMArena Chinese | 1242 | 1449 |
| LMArena French | 1283 | 1403 |
| LMArena German | 1251 | 1413 |
| LMArena Korean | 1184 | 1378 |
| LMArena Russian | 1251 | 1404 |
| LMArena Spanish | 1261 | 1447 |
| LMArena Japanese | 1209 | — |
Instruction Following Kimi K2.5 Instant leads
GPT-4: 65.3 (#222), Kimi K2.5 Instant: 75.3 (#65)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1241 | 1430 |
Long Context Kimi K2.5 Instant leads
GPT-4: 37.7 (#212), Kimi K2.5 Instant: 43.9 (#83)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1244 | 1435 |
Writing & Preference Kimi K2.5 Instant leads
GPT-4: 34.9 (#268), Kimi K2.5 Instant: 60.6 (#95)
| Benchmark | GPT-4 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1263 | 1420 |
| LMArena Creative Writing | 1244 | 1381 |
| LMArena Multi-Turn | 1257 | 1427 |
| EQ-Bench Creative Writing | 752 | — |
Frequently asked questions
Is GPT-4 better than Kimi K2.5 Instant?
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 29.1 on the Noometry Index.
Is GPT-4 or Kimi K2.5 Instant better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 31.6 in the Noometry coding category.
How many benchmarks do GPT-4 and Kimi K2.5 Instant share?
16 benchmarks have published results for both models. GPT-4 has 38 scored results on Noometry and Kimi K2.5 Instant has 18.