Qwen3.5 397B A17B vs DeepSeek R1

At a Glance

Compare
DeepSeek R1DeepSeek
Pricing and Limits
Input priceFrom · USD / 1M tokens$0.45Deepinfra · Sep 22, 2026$0.70Openrouter · Aug 28, 2026
Output priceFrom · USD / 1M tokens$3.00Deepinfra · Sep 22, 2026$2.50Openrouter · Aug 28, 2026
Context windowMaximum documented tokens262K164K
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-A17BDeepSeek-R1
LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · leader1,438.26100% of row best · rating · qwen3.5-397b-a17b; 95% CI [1434.97391785, 1441.55191176]; votes 77007; rank 711,372.6095% of row best · rating · deepseek-r1; 95% CI [1367.75270193, 1377.44238946]; votes 18524; rank 168
Overall ResultCounted from the protocol-matched rows above1 benchmark winNo 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-A17BDeepSeek-R1
DeveloperQwenDeepSeek
FamilyQwen3 5 397b A17bDeepseek R1
ModelQwen3.5-397B-A17BDeepSeek-R1
VersionQwen3.5-397B-A17BDeepSeek-R1
Lifecycleactiveactive
Released2026-02-152025-01-20
Knowledge cutoffUnknownUnknown
Input modalitiesText, ImageText
Output modalitiesTextText
Context window262K164K
Total parameters403.4B684.5B
Active parameters17B37B
Licenseapache-2.0mit
Open weightsYesYes
API availableYesYes
Self-hostableYesYes
Provider accessDeepinfra (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard)Hugging Face (Standard), Openrouter (Standard)
Capabilitieschat, generation, reasoning, toolschat, generation, reasoning

Qwen3.5 397B A17B Capabilities

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

DeepSeek R1 Capabilities

chatgenerationreasoning
Serving providers2
Canonical IDdeepseek-ai/DeepSeek-R1

Primary Evidence

Sources and Freshness

Questions

Qwen3.5 397B A17B vs DeepSeek R1 FAQs

Is Qwen3.5 397B A17B or DeepSeek R1 better for coding?+

This comparison does not currently contain a protocol-matched coding benchmark for both Qwen3.5 397B A17B and DeepSeek R1, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Which is cheaper, Qwen3.5 397B A17B or DeepSeek R1?+

Qwen3.5 397B A17B is $0.45 and DeepSeek R1 is $0.70 per million tokens, so Qwen3.5 397B A17B is cheaper on this metric. Qwen3.5 397B A17B is $3.00 and DeepSeek R1 is $2.50 per million tokens, so DeepSeek R1 is cheaper on this metric.

Which has a larger context window, Qwen3.5 397B A17B or DeepSeek R1?+

Qwen3.5 397B A17B has the larger sourced context window. Qwen3.5 397B A17B supports 262K and DeepSeek R1 supports 164K.

Which performs better in benchmarks, Qwen3.5 397B A17B or DeepSeek R1?+

There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.

Can Qwen3.5 397B A17B or DeepSeek R1 be self-hosted?+

Both models have the same recorded self-hosting status: supported. Qwen3.5 397B A17B is open weight; DeepSeek R1 is open weight.

Can Qwen3.5 397B A17B and DeepSeek R1 understand images?+

Qwen3.5 397B A17B is documented with image input; DeepSeek R1 is not documented with image input. This reflects supported input modalities, not vision quality.

Which can generate longer answers, Qwen3.5 397B A17B or DeepSeek R1?+

Neither has a larger sourced maximum output. Qwen3.5 397B A17B is — and DeepSeek R1 is 33K.

Do Qwen3.5 397B A17B and DeepSeek R1 support reasoning and tool use?+

Qwen3.5 397B A17B: reasoning, tool calling, and image input. DeepSeek R1: reasoning. Feature support does not establish relative quality.

Which is available from more inference providers, Qwen3.5 397B A17B or DeepSeek R1?+

Qwen3.5 397B A17B has 4 sourced provider routes; DeepSeek R1 has 2, so Qwen3.5 397B A17B has broader tracked availability.

Which offers better value, Qwen3.5 397B A17B or DeepSeek R1?+

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.

Send Feedback