Qwen 3.8 27B
Qwen 3.8 27B (Alibaba) was released on Aug 14, 2026. In the Epoch AI capability ranking (ECI), it ranks #51 out of 267 models, with 151.55. On Arena, which measures human preference in blind comparisons, it has 1,502 ELO points (#52). On LiveBench, the overall average is 75.3, #30 out of 58 scored models. Against models of the same generation, its best result is on WebDev Arena: 1,593, #20 of 73.
Where Qwen 3.8 27B stands out and where it falls behind, by the numbers
Qwen 3.8 27B has published results on 10 tests compiled by Epoch AI. The yardstick here is its generation: its position among the models released between Nov 17, 2025 and Nov 12, 2026 that took the same test. Against the whole archive, which includes 2023 models, a recent release lands near the top of almost everything, and that says nothing.
Where it stands out
Tests where it sits in the top third of its own generation.
Where it falls behind
Tests where it sits in the bottom half of its own generation.
See all 10 tests, one by one
| Test | Score | In its generation | Overall | Test record |
|---|---|---|---|---|
| Dtbench | 88.0% | #45 / 68 | #47 / 148 | 98.9% Claude Opus 5.5 |
| Lmca | 41.36 | #42 / 68 | #43 / 121 | 68.23 Claude Opus 5.5 |
| CritPt | 5.4% | #58 / 78 (tied with 1) | #59 / 112 | 32.3% GPT-5.6 Sol |
| SciCode | 46.6% | #59 / 75 | #59 / 104 | 66.9% Claude Opus 5.5 |
| ARC-AGI 2 | 42.4% | #36 / 49 | #36 / 83 | 95.0% GPT-6 Astra |
| WebDev Arena | 1,593 | #20 / 73 | #20 / 82 | 1,820 Claude Opus 5.5 |
| ARC-AGI | 87.5% | #31 / 49 (tied with 1) | #31 / 81 | 98.5% Claude Fable 5 |
| ProofBench | 16.0% | #52 / 70 (tied with 2) | #54 / 74 | 100.0% Claude Fable 5.1 |
| Apex Agents | 47.5% | #29 / 49 | #29 / 50 | 82.4% Gemini 4 Argon |
| Surface Evolver Bench | 45.0% | #18 / 23 | #18 / 24 | 95.0% Claude Fable 5 |
For each test, the model's best effort level counts, as in the ranking. Source of the scores: Epoch AI, under CC BY 4.0.
What to compare Qwen 3.8 27B with
The models from other labs closest in capability and released in the same period, at most two per lab. Click any of them to see its page.
| Model | Lab | ECI | ELO | LiveBench | Release |
|---|---|---|---|---|---|
| Muse Spark | Meta AI | 152.13 | 1,508 | n/a | Apr 8, 2026 |
| Grok 4.20 | xAI | 152.08 | n/a | n/a | Feb 17, 2026 |
| GLM-5.2 | Z.ai (Zhipu AI) | 151.86 | n/a | 73.2 | Jun 16, 2026 |
| Gemini 3 Flash | Google DeepMind | 151.80 | 1,511 | n/a | Dec 17, 2025 |
| Qwen 3.8 27B | Alibaba | 151.55 | 1,502 | 75.3 | Aug 14, 2026 |
| Kimi K2.6 | Moonshot | 150.92 | 1,521 | 70.5 | Apr 20, 2026 |
| GPT-5.2 Codex | OpenAI | no ECI | n/a | 74.0 | Dec 18, 2025 |
Qwen 3.8 27B or Gemini 3 Flash?
Gemini 3 Flash is the model from another lab closest to Qwen 3.8 27B in capability. Across the 6 tests both took, this is the score:
| Test | Qwen 3.8 27B | Gemini 3 Flash |
|---|---|---|
| ARC-AGI 2 | 42.4% | 33.6% |
| WebDev Arena | 1,593 | 1,383 |
| ProofBench | 16.0% | 15.0% |
| Lmca | 41.36 | 43.13 |
| ARC-AGI | 87.5% | 84.7% |
| Dtbench | 88.0% | 89.1% |
Unweighted score: each test counts one point, whether math or coding. The dot marks who did better on each row.
Other models from Alibaba
The models from the same lab closest in time, newest first.
| Model | Release | ECI | ELO | LiveBench | Access |
|---|---|---|---|---|---|
| Qwen3.8 Flash | Aug 26, 2026 | no ECI | n/a | n/a | API access |
| Qwen 3.8 27B | Aug 14, 2026 | 151.55 | 1,502 | 75.3 | Open weights (unrestricted) |
| Qwen 3.8 Max | Aug 2, 2026 | 156.88 | 1,536 | 78.5 | API access |
| Qwen3.7 Flash | Jul 27, 2026 | 144.64 | n/a | n/a | API access |
| Qwen3.7-Plus | Jun 2, 2026 | 147.30 | 1,510 | n/a | API access |
| Qwen3.7-Max | May 19, 2026 | 153.83 | 1,530 | 73.1 | API access |
| Qwen 3.6 Flash | Apr 27, 2026 | 143.05 | n/a | n/a | Unknown |
| Qwen3.6 27B | Apr 22, 2026 | 146.48 | n/a | 64.0 | Open weights (unrestricted) |
| Qwen 3.6 Max (Preview) | Apr 20, 2026 | 149.24 | 1,488 | n/a | Unknown |
Have you used Qwen 3.8 27B? Rate it
Users' opinion, not measurement: the rating is kept apart from the ranking and does not move anyone's position. One vote per browser, no sign-up, and you can change your rating later.
What people ask about Qwen 3.8 27B
Where does Qwen 3.8 27B rank among AI models?
In the ROO3 AI Benchmark, ordered by the Epoch AI ECI, Qwen 3.8 27B ranks #51 out of 267 models, with an ECI of 151.55. The ECI is a composite index that combines several hard benchmarks into a single scale. The position changes when a new model comes out, and the page is refreshed six times a day.
Is Qwen 3.8 27B better than Gemini 3 Flash?
Across the 6 tests both models took and Epoch AI compiled, Qwen 3.8 27B comes out ahead on 4, behind on 2 and tied on 0. It is a test-by-test count with no weighting: a win in math counts the same as a win in coding. To choose between the two, look at the tests that resemble your own use.
What is Qwen 3.8 27B best at?
Against models of the same generation (released up to 9 months before and up to 3 months after it), the best relative results of Qwen 3.8 27B are: WebDev Arena (#20 of 73). The yardstick is its position among the models of that period that took the same test.
Where do the numbers on this page come from?
From the same three sources as the ranking, all openly licensed: Epoch AI (ECI and individual tests, CC BY 4.0), Arena (human-preference ELO, CC BY 4.0) and LiveBench (overall average, CC BY-SA 4.0). ROO3 does not measure any model. When the page shows a figure published by the maker itself, it appears in the written analysis, labeled as the maker's, and never enters the ranking.
Where each number comes from
Epoch AI, "AI Benchmarking Hub". Published at epoch.ai. Data under the CC BY 4.0 licence, reordered by roo3.co.
The Arena (LMArena) leaderboard, from the public lmarena-ai/leaderboard-dataset on Hugging Face, under the CC BY 4.0 licence. We are not affiliated with the Arena.
LiveBench, by the LiveBench team, published at livebench.ai under the CC BY-SA 4.0 license. The overall average is recomputed by roo3.co with the same formula as the website (average of the categories), and those numbers stay under CC BY-SA 4.0. We are not affiliated with LiveBench.
← See the full ranking