DeepSeek V4 Flash vs Qwen3-235B-A22B
DeepSeek V4 Flash (2026) and Qwen3-235B-A22B (2025) are frontier reasoning models from DeepSeek and Alibaba. DeepSeek V4 Flash ships a 1M-token context window, while Qwen3-235B-A22B ships a 128K-token context window. On MMLU PRO, DeepSeek V4 Flash leads by 3.4 pts. On pricing, DeepSeek V4 Flash costs $0.11/1M input tokens versus $0.4/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
DeepSeek V4 Flash is ~257% cheaper at $0.11/1M; pay for Qwen3-235B-A22B only for provider fit.
Decision scorecard
Local evidence first| Signal | DeepSeek V4 Flash | Qwen3-235B-A22B |
|---|---|---|
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Long context |
| Context window | 1M | 128K |
| Cheapest output | $0.22/1M tokens | $1.2/1M tokens |
| Provider routes | 3 tracked | 4 tracked |
| Shared benchmarks | MMLU PRO leader | 3 rows |
Decision tradeoffs
- DeepSeek V4 Flash leads the largest shared benchmark signal on MMLU PRO by 3.4 points.
- DeepSeek V4 Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
- DeepSeek V4 Flash has the lower cheapest tracked output price at $0.22/1M tokens.
- DeepSeek V4 Flash uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags DeepSeek V4 Flash for Coding, RAG, and Agents.
- Qwen3-235B-A22B has broader tracked provider coverage for fallback and procurement flexibility.
- Local decision data tags Qwen3-235B-A22B for Coding, RAG, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
DeepSeek V4 Flash
$146
Cheapest tracked route: OpenRouter
Qwen3-235B-A22B
$620
Cheapest tracked route: AWS Bedrock
Estimated monthly gap: $474. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Qwen3-235B-A22B is $0.98/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Reasoning, Function calling, and Tool use before moving production traffic.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- DeepSeek V4 Flash is $0.98/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- DeepSeek V4 Flash adds Reasoning, Function calling, and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-24 | 2025-04-29 |
| Context window | 1M | 128K |
| Parameters | 284B | 235B |
| Architecture | mixture of experts | decoder only |
| License | MIT | Apache 2.0 |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | DeepSeek V4 Flash | Qwen3-235B-A22B |
|---|---|---|
| Input price | $0.11/1M tokens | $0.4/1M tokens |
| Output price | $0.22/1M tokens | $1.2/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V4 Flash | Qwen3-235B-A22B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | No | No |
Benchmarks
| Benchmark | DeepSeek V4 Flash | Qwen3-235B-A22B |
|---|---|---|
| MMLU PRO | 86.2 | 82.8 |
| Google-Proof Q&A | 88.1 | 86.1 |
| LiveCodeBench | 91.6 | 80.4 |
Deep dive
On shared benchmark coverage, MMLU PRO has DeepSeek V4 Flash at 86.2 and Qwen3-235B-A22B at 82.8, with DeepSeek V4 Flash ahead by 3.4 points; Google-Proof Q&A has DeepSeek V4 Flash at 88.1 and Qwen3-235B-A22B at 86.1, with DeepSeek V4 Flash ahead by 2 points; LiveCodeBench has DeepSeek V4 Flash at 91.6 and Qwen3-235B-A22B at 80.4, with DeepSeek V4 Flash ahead by 11.2 points. The largest visible gap is 11.2 points on LiveCodeBench, 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 reasoning mode: DeepSeek V4 Flash, function calling: DeepSeek V4 Flash, and tool use: DeepSeek V4 Flash. Both models share structured outputs, 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 V4 Flash lists $0.11/1M input and $0.22/1M output tokens, while Qwen3-235B-A22B lists $0.4/1M input and $1.2/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts DeepSeek V4 Flash lower by about $0.49 per million blended tokens. Availability is 3 providers versus 4, so concentration risk also matters.
Choose DeepSeek V4 Flash when reasoning depth, larger context windows, and lower input-token cost are central to the workload. Choose Qwen3-235B-A22B when provider fit 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 V4 Flash or Qwen3-235B-A22B?
DeepSeek V4 Flash supports 1M tokens, while Qwen3-235B-A22B supports 128K 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 V4 Flash or Qwen3-235B-A22B?
DeepSeek V4 Flash is cheaper on tracked token pricing. DeepSeek V4 Flash costs $0.11/1M input and $0.22/1M output tokens. Qwen3-235B-A22B costs $0.4/1M input and $1.2/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is DeepSeek V4 Flash or Qwen3-235B-A22B open source?
DeepSeek V4 Flash is listed under MIT. Qwen3-235B-A22B 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 reasoning mode, DeepSeek V4 Flash or Qwen3-235B-A22B?
DeepSeek V4 Flash has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for function calling, DeepSeek V4 Flash or Qwen3-235B-A22B?
DeepSeek V4 Flash has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek V4 Flash and Qwen3-235B-A22B?
DeepSeek V4 Flash is available on DeepSeek Platform, OpenRouter, and Microsoft Foundry. Qwen3-235B-A22B is available on Fireworks AI, AWS Bedrock, OpenRouter, and Venice AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-20. Data sourced from public model cards and provider documentation.