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 frontier reasoning 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 Massive Multi-discipline Multimodal Understanding, Gemini 2.5 Pro leads by 2.1 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Gemini 2.5 Pro is safer overall; choose Gemini 2.5 Pro Preview 05-06 when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | Gemini 2.5 Pro | Gemini 2.5 Pro Preview 05-06 |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | multimodal apps and long-context analysis |
| Decision fit | Coding, RAG, and Agents | RAG, Long context, and Vision |
| Context window | 1m | 1m |
| Cheapest output | $10/1M tokens | $10/1M tokens |
| Provider routes | 4 tracked | 1 tracked |
| Shared benchmarks | Massive Multi-discipline Multimodal Understanding leader | 1 shared |
Decision tradeoffs
- Gemini 2.5 Pro holds a shared-benchmark lead on Massive Multi-discipline Multimodal Understanding, ahead by 2.1 points.
- Gemini 2.5 Pro has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini 2.5 Pro uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags Gemini 2.5 Pro for Coding, RAG, and Agents.
- Local decision data tags Gemini 2.5 Pro Preview 05-06 for RAG, Long context, and Vision.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemini 2.5 Pro
$3,500
Cheapest tracked route/tier: Google AI Studio <=200K tokens
Gemini 2.5 Pro Preview 05-06
$3,500
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $0.00. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Cheapest tracked output pricing is tied, so migration risk shifts to quality, latency, and provider packaging.
- Check replacement coverage for Reasoning, Function calling, and Tool use before moving production traffic.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Cheapest tracked output pricing is tied, so migration risk shifts to quality, latency, and provider packaging.
- Gemini 2.5 Pro adds Reasoning, Function calling, and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-06-17 | 2025-05-06 |
| Context window | 1m | 1m |
| Parameters | — | — |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2025-01 | 2025-01 |
Pricing and availability
| Pricing attribute | Gemini 2.5 Pro | Gemini 2.5 Pro Preview 05-06 |
|---|---|---|
| Input price |
| $1.25/1M tokens |
| Output price |
| $10/1M tokens |
| Providers |
Capabilities
| Capability | Gemini 2.5 Pro | Gemini 2.5 Pro Preview 05-06 |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Gemini 2.5 Pro | Gemini 2.5 Pro Preview 05-06 |
|---|---|---|
| Massive Multi-discipline Multimodal Understanding | 81.7 | 79.6 |
Deep dive
On shared benchmark coverage, Massive Multi-discipline Multimodal Understanding has Gemini 2.5 Pro at 81.7 and Gemini 2.5 Pro Preview 05-06 at 79.6, with Gemini 2.5 Pro ahead by 2.1 points. The largest visible gap is 2.1 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 reasoning mode: 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 vision, multimodal input, and 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 tiered pricing: <=200K tokens is $1.25/1M input and $10/1M output; >200K tokens is $2.50/1M input and $15/1M output, 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 is tied on the cheapest tracked routes. 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 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 vision-heavy evaluation 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 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?
Neither is cheaper on tracked token pricing. Both list $1.25/1M input and $10/1M output tokens on the cheapest tracked route. Provider discounts, batch pricing, or route-specific tiers 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 Proprietary. 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?
Both Gemini 2.5 Pro and Gemini 2.5 Pro Preview 05-06 expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Gemini 2.5 Pro or Gemini 2.5 Pro Preview 05-06?
Both Gemini 2.5 Pro and Gemini 2.5 Pro Preview 05-06 expose multimodal input. 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 and Gemini 2.5 Pro Preview 05-06?
Gemini 2.5 Pro is available on Google AI Studio, GCP Vertex AI, OpenRouter, and Vercel AI Gateway. Gemini 2.5 Pro Preview 05-06 is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.