Model comparison
Grok 4.7 vs Kimi K2.5 Instant
Grok 4.7 is the stronger model overall, scoring 46.6 to 42.9 on the Noometry Index.
Last verified . 13 shared benchmarks.
Summary
- They share 13 benchmarks with published results for both. Grok 4.7 scores higher in 4 categories and Kimi K2.5 Instant in 5 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where Grok 4.7 leads 55.0 to 42.3.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Grok 4.7 | Kimi K2.5 Instant | |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Noometry Index | 46.6 | 42.9 |
| Released | 2026-09-21 | — |
| Weights | Proprietary | Open |
| Context window | 500K | — |
| Max output | 500K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $6 | — |
| Results tracked | 21 | 18 |
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Category by category
Coding Grok 4.7 leads
Grok 4.7: 55.0 (#23), Kimi K2.5 Instant: 42.3 (#95)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena WebDev | 1636 | 1404 |
| LMArena Coding | 1423 | 1483 |
| CursorBench | 46.3% | — |
| FrontierSWE | 29.5% | — |
| SciCode | 57.4% | — |
Reasoning Grok 4.7 leads
Grok 4.7: 40.1 (#49), Kimi K2.5 Instant: 28.5 (#88)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1409 | 1443 |
| NYT Connections (extended) | 76.8% | — |
| CritPt | 17.7% | — |
Math Grok 4.7 leads
Grok 4.7: 41.1 (#73), Kimi K2.5 Instant: 36.6 (#105)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1393 | 1443 |
| ProofBench | 34% | — |
Knowledge Too close to call
Grok 4.7: 38.7 (#130), Kimi K2.5 Instant: 39.5 (#121)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1413 | 1438 |
Multimodal Kimi K2.5 Instant leads
Grok 4.7: 28.8 (#107), Kimi K2.5 Instant: 39.5 (#47)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |
| Furniture Assembly | 20.8% | — |
Multilingual Kimi K2.5 Instant leads
Grok 4.7: 51.2 (#108), Kimi K2.5 Instant: 52.2 (#89)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1392 | 1406 |
| LMArena Chinese | 1476 | 1450 |
| LMArena Russian | 1396 | 1404 |
| LMArena French | — | 1403 |
| LMArena German | — | 1413 |
| LMArena Korean | — | 1378 |
| LMArena Spanish | — | 1448 |
Instruction Following Kimi K2.5 Instant leads
Grok 4.7: 74.3 (#98), Kimi K2.5 Instant: 75.5 (#61)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1406 | 1430 |
Long Context Too close to call
Grok 4.7: 43.2 (#97), Kimi K2.5 Instant: 43.8 (#82)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1416 | 1435 |
Writing & Preference Grok 4.7 leads
Grok 4.7: 70.1 (#23), Kimi K2.5 Instant: 60.8 (#91)
| Benchmark | Grok 4.7 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1397 | 1420 |
| LMArena Creative Writing | 1391 | 1379 |
| LMArena Multi-Turn | 1389 | 1427 |
| EQ-Bench Creative Writing | 2007 | — |
Frequently asked questions
Is Grok 4.7 better than Kimi K2.5 Instant?
Grok 4.7 is the stronger model overall, scoring 46.6 to 42.9 on the Noometry Index.
Is Grok 4.7 or Kimi K2.5 Instant better for coding?
Grok 4.7 scores higher on coding benchmarks: 55.0 versus 42.3 in the Noometry coding category.
How many benchmarks do Grok 4.7 and Kimi K2.5 Instant share?
13 benchmarks have published results for both models. Grok 4.7 has 21 scored results on Noometry and Kimi K2.5 Instant has 18.