Gemini 2.5 Pro Preview 06-05 vs Qwen3-105B
Gemini 2.5 Pro Preview 06-05 (2025) and Qwen3-105B (2025) are compact production models from Google DeepMind and Alibaba. Gemini 2.5 Pro Preview 06-05 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 2.5 Pro Preview 06-05 fits 8x more tokens; pick it for long-context work and Qwen3-105B for tighter calls.
Decision scorecard
Local evidence first| Signal | Gemini 2.5 Pro Preview 06-05 | Qwen3-105B |
|---|---|---|
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 1M | 128k |
| Cheapest output | $10/1M tokens | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Gemini 2.5 Pro Preview 06-05 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 2.5 Pro Preview 06-05 has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini 2.5 Pro Preview 06-05 uniquely exposes Structured outputs and Code execution in local model data.
- Local decision data tags Gemini 2.5 Pro Preview 06-05 for Coding, RAG, and Agents.
- Qwen3-105B uniquely exposes Function calling and Tool use in local model data.
- 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 2.5 Pro Preview 06-05
$3,500
Cheapest tracked route: OpenRouter
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 2.5 Pro Preview 06-05 and Qwen3-105B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Structured outputs and Code execution before moving production traffic.
- Qwen3-105B adds Function calling and Tool use in local capability data.
- No overlapping tracked provider route is sourced for Qwen3-105B and Gemini 2.5 Pro Preview 06-05; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling and Tool use before moving production traffic.
- Gemini 2.5 Pro Preview 06-05 adds Structured outputs and Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-03-25 | 2025-12-15 |
| Context window | 1M | 128k |
| Parameters | — | 105B |
| Architecture | decoder only | - |
| License | Unknown | Open Source |
| Knowledge cutoff | - | 2025-02 |
Pricing and availability
| Pricing attribute | Gemini 2.5 Pro Preview 06-05 | Qwen3-105B |
|---|---|---|
| Input price | $1.25/1M tokens | - |
| Output price | $10/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Gemini 2.5 Pro Preview 06-05 | Qwen3-105B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | Yes |
| Tool use | No | 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 function calling: Qwen3-105B, tool use: Qwen3-105B, structured outputs: Gemini 2.5 Pro Preview 06-05, and code execution: Gemini 2.5 Pro Preview 06-05. 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.
Pricing coverage is uneven: Gemini 2.5 Pro Preview 06-05 has $1.25/1M input tokens and Qwen3-105B has no token price sourced yet. Provider availability is 1 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 2.5 Pro Preview 06-05 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 2.5 Pro Preview 06-05 or Qwen3-105B?
Gemini 2.5 Pro Preview 06-05 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 2.5 Pro Preview 06-05 or Qwen3-105B open source?
Gemini 2.5 Pro Preview 06-05 is listed under Unknown. 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 function calling, Gemini 2.5 Pro Preview 06-05 or Qwen3-105B?
Qwen3-105B 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, Gemini 2.5 Pro Preview 06-05 or Qwen3-105B?
Qwen3-105B 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.
Which is better for structured outputs, Gemini 2.5 Pro Preview 06-05 or Qwen3-105B?
Gemini 2.5 Pro Preview 06-05 has the clearer documented structured outputs signal in this comparison. If structured outputs is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Gemini 2.5 Pro Preview 06-05 and Qwen3-105B?
Gemini 2.5 Pro Preview 06-05 is available on OpenRouter. 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.