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Gemini 2.5 Pro Preview 03-25 API price

On OpenCheap, Gemini 2.5 Pro Preview 03-25 (Google) costs $1.90 per 1M input tokens and $15.00 per 1M output tokens (cached input $0.190), through one OpenAI-compatible API.

Prices updated 2026-11-03 21:11 UTC.

Price per 1M tokens

Gemini 2.5 Pro Preview 03-25 on OpenCheap: our price per million tokens, context length, and the public list price
Input, our price$1.90
Output, our price$15.00
Cached input, our price$0.190
Prompts above 200K tokens, input · output$3.80 · $23.00
Context length1M tokens
OpenRouter list, input · output—
vs list—

“vs list” compares our price with OpenRouter's list price on a 1:3 input:output blend, as on the Models page. Above a tier's prompt length, the whole request is priced at that tier's rates.

How to call Gemini 2.5 Pro Preview 03-25

Base URL https://api.opencheap.si/v1, model id opencheap/gemini-2.5-pro-preview-03.25, and an API key from the console. Any OpenAI SDK works.

curl https://api.opencheap.si/v1/chat/completions \
  -H "Authorization: Bearer $OPENCHEAP_API_KEY" -H "Content-Type: application/json" \
  -d '{ "model": "opencheap/gemini-2.5-pro-preview-03.25", "messages": [{ "role": "user", "content": "Hi" }] }'
import os
from openai import OpenAI
client = OpenAI(base_url="https://api.opencheap.si/v1", api_key=os.environ["OPENCHEAP_API_KEY"])
r = client.chat.completions.create(model="opencheap/gemini-2.5-pro-preview-03.25",
    messages=[{"role": "user", "content": "Hi"}])
print(r.choices[0].message.content)

FAQ

How much does the Gemini 2.5 Pro Preview 03-25 API cost on OpenCheap?

On OpenCheap, Gemini 2.5 Pro Preview 03-25 costs $1.90 per 1M input tokens and $15.00 per 1M output tokens, and cached input $0.190 per 1M tokens. Each request is routed to the cheapest healthy source for the model. You pay from one prepaid balance, with no monthly fee.

Is it OpenAI-compatible?

Yes. Point any OpenAI SDK or HTTP client at the base URL https://api.opencheap.si/v1 with an OpenCheap API key, and call /chat/completions with the model id opencheap/gemini-2.5-pro-preview-03.25. Requests and responses have the same shape as OpenAI's chat completions, streaming included.

Does it work with Cursor, Claude Code or Codex?

Yes. In Cursor, add the custom model opencheap/gemini-2.5-pro-preview-03.25 with the base URL https://api.opencheap.si/v1. In Claude Code, set ANTHROPIC_BASE_URL to https://api.opencheap.si and ANTHROPIC_MODEL to opencheap/gemini-2.5-pro-preview-03.25. In Codex, add OpenCheap as a model provider with base_url https://api.opencheap.si/v1. The quickstart has each setup step by step.

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