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Gemini 2.5 Pro

Google's mid-2025 flagship, the model that brought Gemini decisively back to parity with the OpenAI and Anthropic frontier.

Updated

Quick facts

Released
Mar 2025
Context
2.1M tokens
Output / 1M
$10.00 / 1M tokens
License
Proprietary

About Gemini 2.5 Pro

Gemini 2.5 Pro was Google's spring 2025 push and the release that closed the perceived quality gap with GPT-4-class models. It introduced thinking-mode capabilities and meaningfully better tool use over the 2.0 line. Still in heavy production use through 2026 even as 3 Pro takes over new workloads.

Benchmarks

Published scores from Google's model card or independent leaderboards. We do not publish numbers we cannot source, see methodology.

HumanEval
,
Python coding pass@1
MMLU
86.0
Broad academic knowledge
GPQA
84.0
Graduate-level reasoning
SWE-bench
,
Real software-engineering tasks
  • MMLU86.0
  • GPQA84.0

Capabilities

Strengths

  • 2M-token context window
  • Strong on long-document tasks
  • Native multimodal handling

Tracked weaknesses

  • Tool-use ecosystem less mature than OpenAI's
  • Mostly superseded by 3 Pro for new builds

Pricing

Per-million-token rates as published by Google.

TierPriceNotes
Input$1.25 / 1M tokensTokens you send to the model
Output$10.00 / 1M tokensTokens the model generates
Context2.1M tokensMax combined input + output

Call Gemini 2.5 Pro from your code

Drop-in snippet for the Google SDK. Set your API key in the environment and run.

typescript
import { GoogleGenerativeAI } from "@google/generative-ai";

const genAI = new GoogleGenerativeAI(process.env.GEMINI_API_KEY);
const model = genAI.getGenerativeModel({ model: "gemini-2-5-pro" });

const result = await model.generateContent(
  "What's the time complexity of quicksort?",
);

console.log(result.response.text());

Compare Gemini 2.5 Pro with…

Frequently asked

  • How much does Gemini 2.5 Pro cost per million tokens?
    Gemini 2.5 Pro is priced at $1.25 / 1M tokens for input tokens and $10.00 / 1M tokens for output tokens via the official Google API at the time of writing.
  • What is Gemini 2.5 Pro's context window?
    Gemini 2.5 Pro supports a context window of 2.1M tokens.
  • Is Gemini 2.5 Pro open source?
    No. Gemini 2.5 Pro is a closed-weight model, you can use it via Google's API but the model weights are not publicly downloadable.
  • When was Gemini 2.5 Pro released?
    Gemini 2.5 Pro was released on Mar 25, 2025 by Google.
  • What is Gemini 2.5 Pro's knowledge cutoff?
    Gemini 2.5 Pro's training data has a knowledge cutoff of Jan 2025. For information after that date you'll need a tool-use or web-search wrapper.
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