ModelRefs / Gemini 3 Pro vs Gemini 2.5 Pro
Gemini 3 Pro vs Gemini 2.5 Pro
Gemini 3 Pro vs Gemini 2.5 Pro: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Gemini 2.5 Pro: Gemini 2.5 Pro is Google DeepMind's experimental thinking model with a 2M-token multimodal context window, released in March 2025. It topped the LMSys Chatbot Arena leaderboard at launch and introduced adaptive reasoning budgets that balance response quality against latency.
Gemini 3 Pro: Gemini 3 Pro is Google DeepMind's flagship multimodal model with a 2M-token context window spanning text, image, audio, and video inputs. It is built for long-context reasoning, document understanding, and multimodal agentic workflows.
Context window: Gemini 2.5 Pro accepts up to 2,000,000 tokens, Gemini 3 Pro up to 2,000,000. Confirm the limit for your specific deployment channel before relying on it.
Gemini 2.5 Pro vs Gemini 3 Pro at a glance
| Attribute | Gemini 2.5 Pro | Gemini 3 Pro |
|---|---|---|
| Provider | ||
| Released | 2025-06-17 | 2025-11-18 |
| Context window | 2,000,000 tokens | 2,000,000 tokens |
| Input price | $1.25/M tokens | $1.25/M tokens |
| Output price | $10/M tokens | $10/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision, audio, video | text, vision, audio, video |
Where they differ most
- Cost Efficiency: Gemini 2.5 Pro 47%, Gemini 3 Pro 47%. Both score the same on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Gemini 3 Pro vs Gemini 2.5 Pro.
Frequently asked questions
Which is better, Gemini 3 Pro or Gemini 2.5 Pro?
Gemini 3 Pro and Gemini 2.5 Pro target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Gemini 3 Pro cheaper than Gemini 2.5 Pro?
Compare $0.00125 vs $0.00125 on this page.