Gemini 2.5 Pro vs Gemini 2.5 Pro Preview 05-06
Gemini 2.5 Pro (2025) and Gemini 2.5 Pro Preview 05-06 (2025) are general-purpose language models from Google DeepMind. Gemini 2.5 Pro ships a 1M-token context window, while Gemini 2.5 Pro Preview 05-06 ships a 1M-token context window. On pricing, Gemini 2.5 Pro costs $1.25/1M input tokens versus $1.25/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Gemini 2.5 Pro is safer overall; choose Gemini 2.5 Pro Preview 05-06 when provider fit matters.
Specs
| Released | 2025-06-17 | 2025-05-06 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Unknown |
| Knowledge cutoff | 2025-01 | - |
Pricing and availability
| Gemini 2.5 Pro | Gemini 2.5 Pro Preview 05-06 | |
|---|---|---|
| Input price | $1.25/1M tokens | $1.25/1M tokens |
| Output price | $10/1M tokens | $10/1M tokens |
| Providers |
Capabilities
| Gemini 2.5 Pro | Gemini 2.5 Pro Preview 05-06 | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Gemini 2.5 Pro, multimodal input: Gemini 2.5 Pro, function calling: Gemini 2.5 Pro, tool use: Gemini 2.5 Pro, and code execution: Gemini 2.5 Pro. 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 lists $1.25/1M input and $10/1M output tokens, while Gemini 2.5 Pro Preview 05-06 lists $1.25/1M input and $10/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Gemini 2.5 Pro lower by about $0 per million blended tokens. Availability is 3 providers versus 1, so concentration risk also matters.
Choose Gemini 2.5 Pro when coding workflow support and broader provider choice are central to the workload. Choose Gemini 2.5 Pro Preview 05-06 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.
FAQ
Which has a larger context window, Gemini 2.5 Pro or Gemini 2.5 Pro Preview 05-06?
Gemini 2.5 Pro supports 1M tokens, while Gemini 2.5 Pro Preview 05-06 supports 1M 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 or Gemini 2.5 Pro Preview 05-06?
Gemini 2.5 Pro is cheaper on tracked token pricing. Gemini 2.5 Pro costs $1.25/1M input and $10/1M output tokens. Gemini 2.5 Pro Preview 05-06 costs $1.25/1M input and $10/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemini 2.5 Pro or Gemini 2.5 Pro Preview 05-06 open source?
Gemini 2.5 Pro is listed under Proprietary. Gemini 2.5 Pro Preview 05-06 is listed under Unknown. 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 2.5 Pro or Gemini 2.5 Pro Preview 05-06?
Gemini 2.5 Pro 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 2.5 Pro or Gemini 2.5 Pro Preview 05-06?
Gemini 2.5 Pro 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.
Where can I run Gemini 2.5 Pro and Gemini 2.5 Pro Preview 05-06?
Gemini 2.5 Pro is available on Google AI Studio, GCP Vertex AI, and OpenRouter. Gemini 2.5 Pro Preview 05-06 is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.