Model comparison
Kimi K2.5 Instant vs Qwen3 8B
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 33.3 on the Noometry Index.
Last verified . 0 shared benchmarks.
Alibaba (Qwen)Summary
- The widest gap is in reasoning, where Kimi K2.5 Instant leads 28.5 to 16.1.
Side by side
| Kimi K2.5 Instant | Qwen3 8B | |
|---|---|---|
| Provider | Moonshot AI | Alibaba (Qwen) |
| Noometry Index | 42.9 | 33.3 |
| Released | — | 2025-04 |
| Weights | Open | Open |
| Context window | — | 131K |
| Max output | — | 8K |
| Input $ / M tokens | — | $0.18 |
| Output $ / M tokens | — | $0.70 |
| Results tracked | 18 | 11 |
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Category by category
Coding Kimi K2.5 Instant leads
Kimi K2.5 Instant: 42.3 (#95), Qwen3 8B: 33.4 (#245)
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| LMArena WebDev | 1404 | — |
| SciCode | — | 22.6% |
| LMArena Coding | 1483 | — |
Agentic & Tool Use Not comparable
Kimi K2.5 Instant: —, Qwen3 8B: 29.9 (#71)
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |
Reasoning Kimi K2.5 Instant leads
Kimi K2.5 Instant: 28.5 (#88), Qwen3 8B: 16.1 (#299)
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| CritPt | — | 0% |
| Chess Puzzles | — | 5% |
| LMArena Hard Prompts | 1443 | — |
| DTBench | — | 59.7% |
| LMCA | — | 8.8% |
| Epoch Capabilities Index | — | 136.17 |
Math Kimi K2.5 Instant leads
Kimi K2.5 Instant: 36.6 (#105), Qwen3 8B: 33.3 (#176)
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 56.1% |
| LMArena Math | 1443 | — |
Knowledge Kimi K2.5 Instant leads
Kimi K2.5 Instant: 39.5 (#121), Qwen3 8B: 36.1 (#164)
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| GPQA Diamond | — | 56.8% |
| Vectara Hallucination Rate | — | 4.8% |
| LMArena Expert | 1438 | — |
Multimodal Not comparable
Kimi K2.5 Instant: 39.5 (#47), Qwen3 8B: —
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Not comparable
Kimi K2.5 Instant: 52.2 (#89), Qwen3 8B: —
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| 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
Kimi K2.5 Instant: 75.5 (#61), Qwen3 8B: —
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| LMArena Instruction Following | 1430 | — |
Long Context Kimi K2.5 Instant leads
Kimi K2.5 Instant: 43.8 (#82), Qwen3 8B: 37.8 (#205)
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
| LMArena Longer Query | 1435 | — |
Writing & Preference Not comparable
Kimi K2.5 Instant: 60.8 (#91), Qwen3 8B: —
| Benchmark | Kimi K2.5 Instant | Qwen3 8B |
|---|---|---|
| LMArena Text | 1420 | — |
| LMArena Creative Writing | 1379 | — |
| LMArena Multi-Turn | 1427 | — |
Frequently asked questions
Is Kimi K2.5 Instant better than Qwen3 8B?
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 33.3 on the Noometry Index.
Is Kimi K2.5 Instant or Qwen3 8B better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.3 versus 33.4 in the Noometry coding category.
How many benchmarks do Kimi K2.5 Instant and Qwen3 8B share?
0 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Qwen3 8B has 11.