DeepSeek V3 0324 vs Qwen3.5-397B-A17B
DeepSeek V3 0324 (2025) and Qwen3.5-397B-A17B (2026) are frontier reasoning models from DeepSeek and Alibaba. DeepSeek V3 0324 ships a 160k-token context window, while Qwen3.5-397B-A17B ships a 262k-token context window. On SWE-bench Verified, DeepSeek V3 0324 leads by 0.6 pts. On pricing, DeepSeek V3 0324 costs $0.27/1M input tokens versus $0.39/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
DeepSeek V3 0324 is ~44% cheaper at $0.27/1M; pay for Qwen3.5-397B-A17B only for reasoning depth.
Decision scorecard
Local evidence first| Signal | DeepSeek V3 0324 | Qwen3.5-397B-A17B |
|---|---|---|
| Best for | provider-routed production | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, Agents, and Long context | Coding, RAG, and Agents |
| Context window | 160k | 262k |
| Cheapest output | $1.12/1M tokens | $2.34/1M tokens |
| Provider routes | 3 tracked | 4 tracked |
| Shared benchmarks | SWE-bench Verified leader | 2 rows |
Decision tradeoffs
- DeepSeek V3 0324 holds a shared-benchmark lead on SWE-bench Verified, ahead by 0.6 points.
- DeepSeek V3 0324 has the lower cheapest tracked output price at $1.12/1M tokens.
- Local decision data tags DeepSeek V3 0324 for Coding, Agents, and Long context.
- Qwen3.5-397B-A17B holds a shared-benchmark lead on Google-Proof Q&A, ahead by 1.7 points.
- Qwen3.5-397B-A17B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Qwen3.5-397B-A17B has broader tracked provider coverage for fallback and procurement flexibility.
- Qwen3.5-397B-A17B uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Qwen3.5-397B-A17B for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
DeepSeek V3 0324
$496
Cheapest tracked route/tier: Novita AI
Qwen3.5-397B-A17B
$897
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $401. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on Novita AI; start route-level A/B tests there.
- Qwen3.5-397B-A17B is $1.22/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Qwen3.5-397B-A17B adds Vision, Multimodal, and Reasoning in local capability data.
- Provider overlap exists on Novita AI; start route-level A/B tests there.
- DeepSeek V3 0324 is $1.22/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-03-24 | 2026-02-16 |
| Context window | 160k | 262k |
| Parameters | 671B | 397B |
| Architecture | decoder only | MoE |
| License | MIT(OSI) | Apache 2.0(OSI) |
| Openness | Open source | Open source |
| Commercial use | Commercial use allowed | Commercial use allowed |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | DeepSeek V3 0324 | Qwen3.5-397B-A17B |
|---|---|---|
| Input price | $0.27/1M tokens | $0.39/1M tokens |
| Output price | $1.12/1M tokens | $2.34/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V3 0324 | Qwen3.5-397B-A17B |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | Yes |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | DeepSeek V3 0324 | Qwen3.5-397B-A17B |
|---|---|---|
| SWE-bench Verified | 76.8 | 76.2 |
| Google-Proof Q&A | 87.6 | 89.3 |
Deep dive
On shared benchmark coverage, SWE-bench Verified has DeepSeek V3 0324 at 76.8 and Qwen3.5-397B-A17B at 76.2, with DeepSeek V3 0324 ahead by 0.6 points; Google-Proof Q&A has DeepSeek V3 0324 at 87.6 and Qwen3.5-397B-A17B at 89.3, with Qwen3.5-397B-A17B ahead by 1.7 points. The largest visible gap is 1.7 points on Google-Proof Q&A, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on vision: Qwen3.5-397B-A17B, multimodal input: Qwen3.5-397B-A17B, reasoning mode: Qwen3.5-397B-A17B, function calling: Qwen3.5-397B-A17B, tool use: Qwen3.5-397B-A17B, and structured outputs: Qwen3.5-397B-A17B. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, DeepSeek V3 0324 lists $0.27/1M input and $1.12/1M output tokens on the cheapest tracked provider, while Qwen3.5-397B-A17B lists $0.39/1M input and $2.34/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts DeepSeek V3 0324 lower by about $0.45 per million blended tokens. Availability is 3 providers versus 4, so concentration risk also matters.
Choose DeepSeek V3 0324 when provider fit and lower input-token cost are central to the workload. Choose Qwen3.5-397B-A17B when reasoning depth, larger context windows, and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, DeepSeek V3 0324 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B supports 262k tokens, while DeepSeek V3 0324 supports 160k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, DeepSeek V3 0324 or Qwen3.5-397B-A17B?
DeepSeek V3 0324 is cheaper on tracked token pricing. DeepSeek V3 0324 costs $0.27/1M input and $1.12/1M output tokens. Qwen3.5-397B-A17B costs $0.39/1M input and $2.34/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is DeepSeek V3 0324 or Qwen3.5-397B-A17B open source?
DeepSeek V3 0324 is listed under MIT. Qwen3.5-397B-A17B is listed under Apache 2.0. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, DeepSeek V3 0324 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, DeepSeek V3 0324 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek V3 0324 and Qwen3.5-397B-A17B?
DeepSeek V3 0324 is available on Fireworks AI, Microsoft Foundry, and Novita AI. Qwen3.5-397B-A17B is available on OpenRouter, Together AI, Alibaba Cloud PAI-EAS, and Novita AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-06-04. Data sourced from public model cards and provider documentation.