Qwen3.5 397B A17B vs Qwen3.8 27B

At a Glance

Compare
Intelligence, Cost, and Efficiency
IntelligenceHigher is better · MM Intelligence v4.4#24 of 5750.5 score · 1/3 sources · single-source provisional · missing LiveBench, ARC-AGI-2 · full-core range 16.8–83.5#23 of 5752.2 score · 3/3 sources · complete
CostLower is better · Published-token output estimateUnrankedNot in the 27-model eligible cohort#12 of 27$0.063 per LiveBench case
EfficiencyHigher is better · MM Efficiency v1.9UnrankedNot in the 27-model eligible cohort#17 of 2747.3 score · 3/3 sources · complete
Pricing and Limits
Input priceFrom · USD / 1M tokens$0.45Deepinfra ↗ · Oct 19, 2026$0.20Deepinfra ↗ · Oct 19, 2026
Output priceFrom · USD / 1M tokens$3.00Deepinfra ↗ · Oct 19, 2026$2.20Openrouter ↗ · Oct 19, 2026
Context windowMaximum documented tokens262K262K
Model facts checkedAug 28, 2026View model evidence →Aug 28, 2026View model evidence →

Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →

Available Benchmarks

All benchmark results →
BenchmarkQwen3.5-397B-A17BQwen3.8-27B
LMArena Text Arenatext-2026-10-15-a64ca3b12b6e · arena_rating · statistical tie1,437.72100% of row best · rating · qwen3.5-397b-a17b; 95% CI [1434.65086689, 1440.78699055]; votes 93567; rank 811,440.55100% of row best · rating · qwen3.8-27b; 95% CI [1435.47949951, 1445.61514077]; votes 23294; rank 75
LMArena Vision Arenavision-2026-10-09-a64ca3b12b6e · arena_rating · statistical tie1,262.5299% of row best · rating · qwen3.5-397b-a17b; 95% CI [1257.19517602, 1267.83577721]; votes 32058; rank 541,271.39100% of row best · rating · qwen3.8-27b; 95% CI [1262.99100972, 1279.79432635]; votes 7013; rank 42
Overall ResultCounted from the protocol-matched rows above · 2 ties0 benchmark winsNo overall winner0 benchmark winsNo overall winner

Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.

Side-by-Side Facts

FieldQwen3.5-397B-A17BQwen3.8-27B
DeveloperQwenQwen
FamilyQwen3 5 397b A17bQwen3 8 27b
ModelQwen3.5-397B-A17BQwen3.8-27B
VersionQwen3.5-397B-A17BQwen3.8-27B
Lifecycleactiveactive
Released2026-02-15Unknown
Knowledge cutoffUnknownUnknown
Input modalitiesText, ImageText, Image
Output modalitiesTextText
Context window262K262K
Total parameters403.4B27.8B
Active parameters17BUnknown
Licenseapache-2.0apache-2.0
Open weightsYesYes
API availableYesYes
Self-hostableYesYes
Provider accessDeepinfra (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard)Deepinfra (Standard), Hugging Face (Standard), Openrouter (Standard)
Capabilitieschat, generation, reasoning, toolschat, generation, reasoning, tools

Qwen3.5 397B A17B Capabilities

chatgenerationreasoningtools
Serving providers4
Canonical IDQwen/Qwen3.5-397B-A17B

Qwen3.8 27B Capabilities

chatgenerationreasoningtools
Serving providers3
Canonical IDQwen/Qwen3.8-27B

Primary Evidence

Sources and Freshness

Questions

Qwen3.5 397B A17B vs Qwen3.8 27B FAQs

Is Qwen3.5 397B A17B or Qwen3.8 27B better for coding?+

This comparison does not currently contain a protocol-matched coding benchmark for both Qwen3.5 397B A17B and Qwen3.8 27B, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Which is cheaper, Qwen3.5 397B A17B or Qwen3.8 27B?+

Qwen3.5 397B A17B is $0.45 and Qwen3.8 27B is $0.20 per million tokens, so Qwen3.8 27B is cheaper on this metric. Qwen3.5 397B A17B is $3.00 and Qwen3.8 27B is $2.20 per million tokens, so Qwen3.8 27B is cheaper on this metric.

Which has a larger context window, Qwen3.5 397B A17B or Qwen3.8 27B?+

Both models have the same sourced context window: 262,144 tokens each.

Which performs better in benchmarks, Qwen3.5 397B A17B or Qwen3.8 27B?+

There is no overall benchmark winner: Neither model leads outside the score tolerance on the verified common benchmarks.

Can Qwen3.5 397B A17B or Qwen3.8 27B be self-hosted?+

Both models have the same sourced self-hosting status: supported. Qwen3.5 397B A17B is open weight; Qwen3.8 27B is open weight.

Can Qwen3.5 397B A17B and Qwen3.8 27B understand images?+

Qwen3.5 397B A17B is documented with image input; Qwen3.8 27B is documented with image input. This reflects supported input modalities, not vision quality.

Which can generate longer answers, Qwen3.5 397B A17B or Qwen3.8 27B?+

Qwen3.8 27B has a sourced maximum output of 131,072 tokens; Qwen3.5 397B A17B's maximum output is not reported. A larger limit cannot be determined.

Do Qwen3.5 397B A17B and Qwen3.8 27B support reasoning and tool use?+

Qwen3.5 397B A17B: reasoning, tool calling, and image input. Qwen3.8 27B: reasoning, tool calling, and image input. Feature support does not establish relative quality.

Which is available from more inference providers, Qwen3.5 397B A17B or Qwen3.8 27B?+

Qwen3.5 397B A17B has 4 sourced provider routes; Qwen3.8 27B has 3, so Qwen3.5 397B A17B has broader tracked availability.

Which offers better value, Qwen3.5 397B A17B or Qwen3.8 27B?+

There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.

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