# Qwen3.5-27B

As of October 21, 2026, Qwen3.5-27B ranks #83 of 213 models overall with 22.9 on the Artificial Analysis Intelligence Index. Its strongest category is reasoning, where it ranks #71 of 203. Qwen3.5-27B costs $0.27 per million input tokens and $2.16 per million output tokens. It was released on February 25, 2026.

Page: https://llmbenchmark.ai/models/qwen3-5-27b
Data from October 21, 2026. Every figure below names the board it was read from and the day.

- Maker: Qwen
- Released: February 25, 2026
- Price per million input tokens: $0.27
- Price per million output tokens: $2.16
- Context window: 262K tokens
- Overall rank: 83 of 213, by the Artificial Analysis Intelligence Index
- Artificial Analysis Intelligence Index: 22.9
- Vibe Coding Index: not enough data (one index benchmark; at least two are needed to rank)

Benchmark results (53 of 190):

- LMArena WebDev: 1358 Elo (source: LMArena WebDev, read October 21, 2026)
- AA Intelligence Index: 22.9 (source: Artificial Analysis (via OpenRouter), read October 21, 2026)
- GPQA Diamond (Artificial Analysis run): 85.8% (source: Artificial Analysis, read October 21, 2026)
- Humanity's Last Exam (Artificial Analysis run): 23.9% (source: Artificial Analysis, read October 21, 2026)
- Terminal-Bench Hard (Artificial Analysis run): 32.6% (source: Artificial Analysis, read October 21, 2026)
- IFBench: 75.6% (source: Artificial Analysis, read October 21, 2026)
- Long context reasoning (AA-LCR): 77.7% (source: Artificial Analysis, read October 21, 2026)
- τ²-Bench Telecom: 93.9% (source: Artificial Analysis, read October 21, 2026)
- WeirdML: 39.5% (source: Epoch AI benchmarking hub, read October 21, 2026)
- DTBench: 82.4% (source: Epoch AI benchmarking hub, read October 21, 2026)
- LMCA: 34.0% (source: Epoch AI benchmarking hub, read October 21, 2026)
- ALE-Bench: 349.4 (source: ALE-Bench (Sakana AI), read October 21, 2026)
- Vending-Bench 2: $202 (source: Epoch AI benchmarking hub, read October 21, 2026)
- LMArena Text: 1409 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: coding: 1427 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: hard prompts: 1415 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: math: 1429 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: instruction following: 1393 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: creative writing: 1362 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: 1241 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: English: 1425 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: non-English: 1390 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: Chinese: 1478 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: German: 1392 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: Japanese: 1346 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: Korean: 1359 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: French: 1410 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: Spanish: 1407 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: Russian: 1390 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: Polish: 1375 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: multi-turn: 1410 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: longer queries: 1413 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: expert: 1427 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: hard prompts in English: 1429 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: software and IT: 1431 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: mathematical work: 1429 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: science: 1437 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: medicine and healthcare: 1425 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: legal and government: 1405 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: business and finance: 1399 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: writing and language: 1380 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Text: entertainment and media: 1363 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena WebDev: React: 1346 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena WebDev: HTML: 1386 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: English: 1246 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: Chinese: 1301 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: reading text: 1246 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: diagrams: 1249 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: homework: 1256 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: humor: 1227 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: captioning: 1170 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: recognizing things: 1210 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)
- LMArena Vision: creative writing: 1224 Elo (source: LMArena (Hugging Face dataset), read October 21, 2026)