Gemini 3 Flash Preview vs Qwen3-105B
Gemini 3 Flash Preview (2025) and Qwen3-105B (2025) are compact production models from Google DeepMind and Alibaba. Gemini 3 Flash Preview ships a 1M-token context window, while Qwen3-105B ships a 128k-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
Gemini 3 Flash Preview fits 8x more tokens; pick it for long-context work and Qwen3-105B for tighter calls.
Decision scorecard
Local evidence first| Signal | Gemini 3 Flash Preview | Qwen3-105B |
|---|---|---|
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 1M | 128k |
| Cheapest output | $3/1M tokens | - |
| Provider routes | 3 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Gemini 3 Flash Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 3 Flash Preview has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini 3 Flash Preview uniquely exposes Vision, Multimodal, and Structured outputs in local model data.
- Local decision data tags Gemini 3 Flash Preview for Coding, RAG, and Agents.
- Local decision data tags Qwen3-105B for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Gemini 3 Flash Preview
$1,150
Cheapest tracked route: GCP Vertex AI
Qwen3-105B
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Gemini 3 Flash Preview and Qwen3-105B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and Structured outputs before moving production traffic.
- No overlapping tracked provider route is sourced for Qwen3-105B and Gemini 3 Flash Preview; plan for SDK, billing, or endpoint changes.
- Gemini 3 Flash Preview adds Vision, Multimodal, and Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-12-17 | 2025-12-15 |
| Context window | 1M | 128k |
| Parameters | — | 105B |
| Architecture | decoder only | - |
| License | Proprietary | Open Source |
| Knowledge cutoff | 2025-01 | 2025-02 |
Pricing and availability
| Pricing attribute | Gemini 3 Flash Preview | Qwen3-105B |
|---|---|---|
| Input price | $0.5/1M tokens | - |
| Output price | $3/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Gemini 3 Flash Preview | Qwen3-105B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | No | No |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | No |
| Code execution | Yes | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Gemini 3 Flash Preview, multimodal input: Gemini 3 Flash Preview, structured outputs: Gemini 3 Flash Preview, and code execution: Gemini 3 Flash Preview. Both models share 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.
Pricing coverage is uneven: Gemini 3 Flash Preview has $0.5/1M input tokens and Qwen3-105B has no token price sourced yet. Provider availability is 3 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Gemini 3 Flash Preview when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Qwen3-105B when provider fit 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 has a larger context window, Gemini 3 Flash Preview or Qwen3-105B?
Gemini 3 Flash Preview supports 1M tokens, while Qwen3-105B supports 128k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Gemini 3 Flash Preview or Qwen3-105B open source?
Gemini 3 Flash Preview is listed under Proprietary. Qwen3-105B is listed under Open Source. 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 Preview or Qwen3-105B?
Gemini 3 Flash Preview 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.
Which is better for multimodal input, Gemini 3 Flash Preview or Qwen3-105B?
Gemini 3 Flash Preview 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.
Which is better for function calling, Gemini 3 Flash Preview or Qwen3-105B?
Both Gemini 3 Flash Preview and Qwen3-105B expose function calling. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Gemini 3 Flash Preview and Qwen3-105B?
Gemini 3 Flash Preview is available on GCP Vertex AI, OpenRouter, and Google AI Studio. Qwen3-105B is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.