Gemini 2.5 Pro Preview 05-06 vs Qwen3.5-397B-A17B
Gemini 2.5 Pro Preview 05-06 (2025) and Qwen3.5-397B-A17B (2026) are general-purpose language models from Google DeepMind and Alibaba. Gemini 2.5 Pro Preview 05-06 ships a 1M-token context window, while Qwen3.5-397B-A17B ships a 262K-token context window. On Massive Multi-discipline Multimodal Understanding, Qwen3.5-397B-A17B leads by 5.4 pts. On pricing, Qwen3.5-397B-A17B costs $0.39/1M input tokens versus $1.25/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Qwen3.5-397B-A17B is ~221% cheaper at $0.39/1M; pay for Gemini 2.5 Pro Preview 05-06 only for long-context analysis.
Specs
| Released | 2025-05-06 | 2026-02-16 |
| Context window | 1M | 262K |
| Parameters | — | 397B |
| Architecture | decoder only | MoE |
| License | Unknown | Apache 2.0 |
| Knowledge cutoff | - | - |
Pricing and availability
| Gemini 2.5 Pro Preview 05-06 | Qwen3.5-397B-A17B | |
|---|---|---|
| Input price | $1.25/1M tokens | $0.39/1M tokens |
| Output price | $10/1M tokens | $2.34/1M tokens |
| Providers |
Capabilities
| Gemini 2.5 Pro Preview 05-06 | Qwen3.5-397B-A17B | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
| Benchmark | Gemini 2.5 Pro Preview 05-06 | Qwen3.5-397B-A17B |
|---|---|---|
| Massive Multi-discipline Multimodal Understanding | 79.6 | 85.0 |
Deep dive
On shared benchmark coverage, Massive Multi-discipline Multimodal Understanding has Gemini 2.5 Pro Preview 05-06 at 79.6 and Qwen3.5-397B-A17B at 85, with Qwen3.5-397B-A17B ahead by 5.4 points. The largest visible gap is 5.4 points on Massive Multi-discipline Multimodal Understanding, 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 multimodal input: Qwen3.5-397B-A17B. 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, Gemini 2.5 Pro Preview 05-06 lists $1.25/1M input and $10/1M output tokens, while Qwen3.5-397B-A17B lists $0.39/1M input and $2.34/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Qwen3.5-397B-A17B lower by about $2.9 per million blended tokens. Availability is 1 providers versus 1, so concentration risk also matters.
Choose Gemini 2.5 Pro Preview 05-06 when long-context analysis and larger context windows are central to the workload. Choose Qwen3.5-397B-A17B 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.
FAQ
Which has a larger context window, Gemini 2.5 Pro Preview 05-06 or Qwen3.5-397B-A17B?
Gemini 2.5 Pro Preview 05-06 supports 1M tokens, while Qwen3.5-397B-A17B 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 2.5 Pro Preview 05-06 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B is cheaper on tracked token pricing. Gemini 2.5 Pro Preview 05-06 costs $1.25/1M input and $10/1M output tokens. Qwen3.5-397B-A17B costs $0.39/1M input and $2.34/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemini 2.5 Pro Preview 05-06 or Qwen3.5-397B-A17B open source?
Gemini 2.5 Pro Preview 05-06 is listed under Unknown. Qwen3.5-397B-A17B 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 multimodal input, Gemini 2.5 Pro Preview 05-06 or Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B 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 structured outputs, Gemini 2.5 Pro Preview 05-06 or Qwen3.5-397B-A17B?
Both Gemini 2.5 Pro Preview 05-06 and Qwen3.5-397B-A17B expose structured outputs. 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 2.5 Pro Preview 05-06 and Qwen3.5-397B-A17B?
Gemini 2.5 Pro Preview 05-06 is available on OpenRouter. Qwen3.5-397B-A17B is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Continue comparing
Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.