Model comparison
Inkling-Small vs Kimi K2.5 Instant
Inkling-Small is the stronger model overall, scoring 46.5 to 43.6 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Inkling-Small scores higher in 4 categories and Kimi K2.5 Instant in 5 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Inkling-Small leads 38.6 to 29.7.
Side by side
| Inkling-Small | Kimi K2.5 Instant | |
|---|---|---|
| Provider | Thinking Machines Lab | Moonshot AI |
| Noometry Index | 46.5 | 43.6 |
| Released | 2026-07-15 | — |
| Weights | Open | Open |
| Context window | 524K | — |
| Max output | 1.05M | — |
| Input $ / M tokens | $0.45 | — |
| Output $ / M tokens | $1.20 | — |
| Results tracked | 33 | 18 |
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Category by category
Coding Inkling-Small leads
Inkling-Small: 43.6 (#85), Kimi K2.5 Instant: 42.6 (#97)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena WebDev | 1409 | 1404 |
| LMArena Coding | 1451 | 1484 |
| SciCode | 48.7% | — |
Reasoning Inkling-Small leads
Inkling-Small: 38.6 (#63), Kimi K2.5 Instant: 29.7 (#90)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1423 | 1443 |
| ARC-AGI-2 | 40.1% | — |
| ARC-AGI-1 | 84% | — |
| CritPt | 8.3% | — |
| Chess Puzzles | 18% | — |
| Mystery Game Puzzles | 6% | — |
| Epoch Capabilities Index | 150.15 | — |
Math Inkling-Small leads
Inkling-Small: 45.1 (#77), Kimi K2.5 Instant: 39.4 (#105)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1459 | 1442 |
| FrontierMath (Tiers 1-3) | 46.3% | — |
| FrontierMath Tier 4 | 17.1% | — |
| OTIS Mock AIME 2024-2025 | 90% | — |
| ProofBench | 6% | — |
Knowledge Inkling-Small leads
Inkling-Small: 48.2 (#77), Kimi K2.5 Instant: 40.2 (#123)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1442 | 1440 |
| GPQA Diamond | 88.5% | — |
| SimpleQA Verified | 19.1% | — |
Multimodal Kimi K2.5 Instant leads
Inkling-Small: 39.1 (#62), Kimi K2.5 Instant: 40.2 (#50)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | 1235 | 1254 |
Multilingual Too close to call
Inkling-Small: 51.7 (#104), Kimi K2.5 Instant: 52.0 (#94)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1402 | 1406 |
| LMArena Chinese | 1465 | 1449 |
| LMArena French | 1436 | 1403 |
| LMArena German | 1405 | 1413 |
| LMArena Korean | 1363 | 1378 |
| LMArena Russian | 1391 | 1404 |
| LMArena Spanish | 1428 | 1447 |
| LMArena Japanese | 1405 | — |
Instruction Following Kimi K2.5 Instant leads
Inkling-Small: 73.8 (#114), Kimi K2.5 Instant: 75.3 (#65)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1399 | 1430 |
Long Context Kimi K2.5 Instant leads
Inkling-Small: 42.7 (#118), Kimi K2.5 Instant: 43.9 (#83)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1401 | 1435 |
Writing & Preference Kimi K2.5 Instant leads
Inkling-Small: 59.6 (#107), Kimi K2.5 Instant: 60.6 (#95)
| Benchmark | Inkling-Small | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1414 | 1420 |
| LMArena Creative Writing | 1331 | 1381 |
| LMArena Multi-Turn | 1418 | 1427 |
| EQ-Bench Creative Writing | 1491 | — |
Frequently asked questions
Is Inkling-Small better than Kimi K2.5 Instant?
Inkling-Small is the stronger model overall, scoring 46.5 to 43.6 on the Noometry Index.
Is Inkling-Small or Kimi K2.5 Instant better for coding?
Inkling-Small scores higher on coding benchmarks: 43.6 versus 42.6 in the Noometry coding category.
How many benchmarks do Inkling-Small and Kimi K2.5 Instant share?
18 benchmarks have published results for both models. Inkling-Small has 33 scored results on Noometry and Kimi K2.5 Instant has 18.