Gemini 3 is Google's flagship model family — Gemini 3 Pro, Gemini 3.1 Pro and Gemini 3 Flash — natively multimodal, 1M+ token context, chain-of-thought reasoning. This guide covers what the Gemini 3 API costs at Google's list, its status on Kunavo, and how to run the same workloads today on Gemini 2.5 through one OpenAI-compatible endpoint.
maxOutputTokens entirely). We list a model only when we can serve it dependably and below official list. The live Gemini models today are Gemini 2.5 Pro and Gemini 2.5 Flash on the same endpoint; adopting Gemini 3 later is a one-word change to the model field.Gemini 3 API pricing
Google's official list rates for the family, next to the live Gemini 2.5 rates on Kunavo (about 70% under Google's 2.5 list):
| Model | Input / 1M | Output / 1M | Status on Kunavo |
|---|---|---|---|
| Gemini 3 Pro (Google list, ≤200k ctx) | $2.00 | $12.00 | Reserved — not enabled |
| Gemini 3.1 Pro (Google list) | $2.00 | $12.00 | Reserved — not enabled |
| Gemini 3 Flash (Google list) | $0.50 | $3.00 | Reserved — not enabled |
| Gemini 2.5 Pro on Kunavo | $0.375 | $3.00 | Live |
| Gemini 2.5 Flash on Kunavo | $0.09 | $0.75 | Live |
Full 2.5-family rates and worked cost examples are in the Gemini API pricing guide.
Call Gemini on Kunavo today
Kunavo fronts Gemini behind the OpenAI-compatible /v1/chat/completions endpoint — keep the OpenAI SDK, change base_url, no Google Cloud project:
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["KUNAVO_API_KEY"],
base_url="https://api.kunavo.com/v1",
)
# Live Gemini today. The gemini-3-pro / gemini-3-flash slugs are already
# reserved in the catalog — switching when they go live is one word.
resp = client.chat.completions.create(
model="gemini-2-5-pro",
messages=[{"role": "user", "content": "Summarize this contract in 5 bullets."}],
)
print(resp.choices[0].message.content)Getting a key takes a minute — see the Gemini API key guide. The same sk-kunavo- key also reaches Claude, GPT, Nano Banana image and Veo 3 video.
Gemini 3 vs Gemini 2.5 — should you wait?
- Long-context and reasoning workloads — Gemini 2.5 Pro already carries 1M-token context and strong chain-of-thought; it's the pragmatic default while 3 stabilizes.
- High-volume, latency-sensitive calls — Gemini 2.5 Flash at $0.09 in / $0.75 out is the cost-efficiency play; Gemini 3 Flash will slot into the same tier.
- Building for the upgrade — code against the OpenAI-compatible shape and treat the model string as config; the Gemini 3 slugs land behind the same endpoint.
FAQ
What is the Gemini 3 API?
Google's flagship family (3 Pro, 3.1 Pro, 3 Flash) — natively multimodal, 1M+ context, chain-of-thought — callable via Google AI Studio / Vertex AI, or via gateways once served.
Can I use it on Kunavo today?
Not yet — slugs are reserved, family disabled until a source passes our reliability bar. Use Gemini 2.5 Pro / Flash on the same endpoint.
How much does the Gemini 3 API cost?
Google's list: $2 / $12 per 1M tokens for Pro tiers (≤200k context), $0.50 / $3 for Flash. Live Gemini 2.5 on Kunavo runs ~70% under Google's list.
How do I get a Gemini 3 API key?
Google AI Studio for a direct key, or one Kunavo key that covers Gemini 2.5 today and Gemini 3 when enabled — see the key guide.