Gemini 3 Flash vs Qwen3.5-9B
Gemini 3 Flash (2025) and Qwen3.5-9B (2026) are general-purpose language models from Google DeepMind and Alibaba. Gemini 3 Flash ships a 1m-token context window, while Qwen3.5-9B ships a 262k-token context window. On MMLU PRO, Gemini 3 Flash leads by 6.1 pts. On pricing, Gemini 3 Flash costs $0.50/1M input tokens; Qwen3.5-9B costs $0.10/1M input tokens. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Qwen3.5-9B is safer overall; choose Gemini 3 Flash when coding workflow support matters.
Decision scorecard
Local evidence first| Signal | Gemini 3 Flash | Qwen3.5-9B |
|---|---|---|
| Best for | multimodal apps, tool-calling agents, and long-context analysis | multimodal apps, tool-calling agents, and provider-routed production |
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 1m | 262k |
| Cheapest output | $3/1M tokens | $0.15/1M tokens |
| Provider routes | 4 tracked | 3 tracked |
| Shared benchmarks | MMLU PRO leader | 2 rows |
Decision tradeoffs
- Gemini 3 Flash leads the largest shared benchmark signal on MMLU PRO by 6.1 points.
- Gemini 3 Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 3 Flash has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini 3 Flash uniquely exposes Code execution in local model data.
- Local decision data tags Gemini 3 Flash for Coding, RAG, and Agents.
- Qwen3.5-9B has the lower cheapest tracked output price at $0.15/1M tokens.
- Qwen3.5-9B uniquely exposes Structured outputs in local model data.
- Local decision data tags Qwen3.5-9B for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemini 3 Flash
$1,150
Cheapest tracked route/tier: Replicate API
Qwen3.5-9B
$118
Cheapest tracked route/tier: Together AI
Estimated monthly gap: $1,033. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Gemini 3 Flash and Qwen3.5-9B; plan for SDK, billing, or endpoint changes.
- Qwen3.5-9B is $2.85/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Code execution before moving production traffic.
- Qwen3.5-9B adds Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Qwen3.5-9B and Gemini 3 Flash; plan for SDK, billing, or endpoint changes.
- Gemini 3 Flash is $2.85/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- Gemini 3 Flash adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-12-17 | 2026-03-02 |
| Context window | 1m | 262k |
| Parameters | — | 9B |
| Architecture | decoder only | decoder only |
| License | Proprietary | Apache 2.0 |
| Knowledge cutoff | 2025-01 | - |
Pricing and availability
| Pricing attribute | Gemini 3 Flash | Qwen3.5-9B |
|---|---|---|
| Input price |
| $0.10/1M tokens |
| Output price |
| $0.15/1M tokens |
| Providers |
Capabilities
| Capability | Gemini 3 Flash | Qwen3.5-9B |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | No |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | No | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Gemini 3 Flash | Qwen3.5-9B |
|---|---|---|
| MMLU PRO | 88.6 | 82.5 |
| Google-Proof Q&A | 90.4 | 81.7 |
Deep dive
On shared benchmark coverage, MMLU PRO has Gemini 3 Flash at 88.6 and Qwen3.5-9B at 82.5, with Gemini 3 Flash ahead by 6.1 points; Google-Proof Q&A has Gemini 3 Flash at 90.4 and Qwen3.5-9B at 81.7, with Gemini 3 Flash ahead by 8.7 points. The largest visible gap is 8.7 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 structured outputs: Qwen3.5-9B and code execution: Gemini 3 Flash. Both models share vision, multimodal input, function calling, and tool use, 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, Gemini 3 Flash lists tiered pricing: 0-200,001t is $0.50/1M input and $3/1M output; 200,001t+ is $0.50/1M input and $3/1M output, while Qwen3.5-9B lists $0.10/1M input and $0.15/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Qwen3.5-9B lower by about $1.14 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 4 providers versus 3, so concentration risk also matters.
Choose Gemini 3 Flash when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Qwen3.5-9B when vision-heavy evaluation 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.
FAQ
Which has a larger context window, Gemini 3 Flash or Qwen3.5-9B?
Gemini 3 Flash supports 1m tokens, while Qwen3.5-9B supports 262k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Gemini 3 Flash or Qwen3.5-9B?
Gemini 3 Flash lists tiered pricing: 0-200,001t is $0.50/1M input and $3/1M output; 200,001t+ is $0.50/1M input and $3/1M output. Qwen3.5-9B lists $0.10/1M input and $0.15/1M output tokens on the cheapest tracked provider. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.
Is Gemini 3 Flash or Qwen3.5-9B open source?
Gemini 3 Flash is listed under Proprietary. Qwen3.5-9B 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, Gemini 3 Flash or Qwen3.5-9B?
Both Gemini 3 Flash and Qwen3.5-9B expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Gemini 3 Flash or Qwen3.5-9B?
Both Gemini 3 Flash and Qwen3.5-9B expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Where can I run Gemini 3 Flash and Qwen3.5-9B?
Gemini 3 Flash is available on Replicate API, GCP Vertex AI, Google AI Studio, and Vercel AI Gateway. Qwen3.5-9B is available on Together AI, OpenRouter, and Alibaba Cloud PAI-EAS. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.