DeepSeek V4 Flash vs Qwen3-Next-80B-A3B
DeepSeek V4 Flash (2026) and Qwen3-Next-80B-A3B (2025) are frontier reasoning models from DeepSeek and Alibaba. DeepSeek V4 Flash ships a 1m-token context window, while Qwen3-Next-80B-A3B ships a not-yet-sourced context window. On pricing, Qwen3-Next-80B-A3B costs $0.10/1M input tokens versus $0.10/1M 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 V4 Flash is safer overall; choose Qwen3-Next-80B-A3B when provider fit matters.
Decision scorecard
Local evidence first| Signal | DeepSeek V4 Flash | Qwen3-Next-80B-A3B |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and long-context analysis | provider-routed production |
| Decision fit | Coding, RAG, and Agents | Classification and JSON / Tool use |
| Context window | 1m | — |
| Cheapest output | $0.20/1M tokens | $0.78/1M tokens |
| Provider routes | 5 tracked | 4 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- 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 $0.20/1M tokens.
- DeepSeek V4 Flash has broader tracked provider coverage for fallback and procurement flexibility.
- 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.
- Local decision data tags Qwen3-Next-80B-A3B for Classification and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
DeepSeek V4 Flash
$128
Cheapest tracked route/tier: OpenRouter
Qwen3-Next-80B-A3B
$273
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $145. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter and Novita AI; start route-level A/B tests there.
- Qwen3-Next-80B-A3B is $0.58/1M 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 and Novita AI; start route-level A/B tests there.
- DeepSeek V4 Flash is $0.58/1M 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 | 2025-12-01 |
| Context window | 1m | — |
| Parameters | 284B | 80B (3B active) |
| Architecture | mixture of experts | - |
| 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 V4 Flash | Qwen3-Next-80B-A3B |
|---|---|---|
| Input price | $0.10/1M tokens | $0.10/1M tokens |
| Output price | $0.20/1M tokens | $0.78/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V4 Flash | Qwen3-Next-80B-A3B |
|---|---|---|
| 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 |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
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 $0.10/1M input and $0.20/1M output tokens on the cheapest tracked provider, while Qwen3-Next-80B-A3B lists $0.10/1M input and $0.78/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts DeepSeek V4 Flash lower by about $0.17 per million blended tokens. Availability is 5 providers versus 4, so concentration risk also matters.
Choose DeepSeek V4 Flash when reasoning depth and broader provider choice are central to the workload. Choose Qwen3-Next-80B-A3B when provider fit and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which is cheaper, DeepSeek V4 Flash or Qwen3-Next-80B-A3B?
DeepSeek V4 Flash is cheaper on tracked token pricing. DeepSeek V4 Flash costs $0.10/1M input and $0.20/1M output tokens. Qwen3-Next-80B-A3B costs $0.10/1M input and $0.78/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is DeepSeek V4 Flash or Qwen3-Next-80B-A3B open source?
DeepSeek V4 Flash is listed under MIT. Qwen3-Next-80B-A3B 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-Next-80B-A3B?
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-Next-80B-A3B?
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.
Which is better for tool use, DeepSeek V4 Flash or Qwen3-Next-80B-A3B?
DeepSeek V4 Flash has the clearer documented tool use signal in this comparison. If tool use 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-Next-80B-A3B?
DeepSeek V4 Flash is available on DeepSeek Platform, OpenRouter, Microsoft Foundry, Vercel AI Gateway, and Novita AI. Qwen3-Next-80B-A3B is available on AWS Bedrock, OpenRouter, Venice AI, and Novita AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-06-01. Data sourced from public model cards and provider documentation.