Gemini 2.5 Pro
FrontierLast verified: June 2026· Google Gemini 2.5 Pro pricing
Large-context reasoning model; pricing can tier by prompt size. Confirm with Google.
- Input / 1M
- $1.25
- Output / 1M
- $10.00
- Context
- 1M tokens
- Provider
Pricing verified June 2026. Prices change frequently. Always confirm against the provider’s official pricing page before relying on these figures for budgeting. Official pricing →
When to choose Gemini 2.5 Pro
The Google-stack frontier pick, and the one row here whose effective rate depends on the shape of your prompt: pricing tiers by prompt size, so $1.25 input is a starting point rather than a flat rate and needs confirming against your own prompt lengths before you budget on it. The asymmetry is unusual too — output costs eight times input, among the widest spreads in this table — which makes it strong on large-context reading and costly on long generation. On Google Cloud or AI Studio it is the natural choice; elsewhere the tiering makes it harder to compare than the headline numbers suggest.
Gemini 2.5 Pro sits close enough to Gemini 2.5 Flash on price that the two are usually decided together. That comparison is written once, on the models table, rather than argued twice from opposite sides.
What Gemini 2.5 Pro costs in practice
On the flat figures a 50M/10M month is $163, and the split is the interesting part: $63 of that is input and $100 is output, on a workload carrying five times more input tokens than output. That is the eight-to-one spread doing the work. Filling the 1M window costs $1.25 of input, which is inexpensive for a frontier row. Read-heavy long-context work is where this pricing flatters you and generation-heavy work is where it does not — and the prompt-size tiering means these figures need checking against your own prompt lengths before they become a budget.
| Scenario | Input / mo | Output / mo | Est. cost / mo |
|---|---|---|---|
| Prototype | 2M | 0.5M | $8 |
| Growing product | 50M | 10M | $163 |
| At scale | 500M | 100M | $1,625 |
Plug in your own numbers with the cost calculator.
Where Gemini 2.5 Pro fits in a routing setup
Routing on the Google stack has a natural shape: Flash carries the volume and Pro takes what Flash cannot. The reference month is $163 here against $40 on Flash, so the boundary between them is worth measuring rather than assuming. Off the Google stack the closest comparison is GPT-4.1, which carries a window of the same size for $180 — near enough that the decision usually turns on which cloud you are already in rather than on the token price.
Cheaper alternatives to Gemini 2.5 Pro
The models immediately below Gemini 2.5 Pro on blended cost, nearest first. A swap only pays if quality holds on the routes you move — see the LLM cost optimization playbook for how to prove that before you move them.
Frequently asked questions
How much does Gemini 2.5 Pro cost?
Gemini 2.5 Pro bills $1.25 per million input tokens and $10.00 per million output tokens — $3.44 per million blended at a three-to-one input:output split. A workload of 50M input and 10M output tokens per month works out at about $163. Confirm current pricing with the provider.
What is Gemini 2.5 Pro's context window?
Gemini 2.5 Pro has a 1M-token context window. One request that fills the whole window costs about $1.25 at the input rate, before the reply is billed.
Where does Gemini 2.5 Pro sit on price?
At $3.44 per million blended — three input tokens for every output token — Gemini 2.5 Pro is dearer than 9 of the 19 models tracked here and cheaper than 9. Output bills at 8x the input rate, and the nearest cheaper model on this table is Mistral Large at $3.00 blended.
Related concepts: context window, model routing, prompt caching, evals.