Gemini 4 Carbon API

Overview

About this model

Gemini 4 Carbon is Google's flagship reasoning model, excelling at complex software engineering, mathematical and scientific problem solving, and multi-step agentic tasks. It supports text, image, video, audio, and PDF inputs, and provides text output, thinking, tool calls, and structured output; input and output share a context window of approximately 1M token, and regular synchronous requests support a maximum output of 65,536 tokens. It supports implicit caching.

Capabilities

Capability matrix

Pricing and groups

Routes and pricing

Prices in USD per 1M tokens. Rates follow provider adjustments; live prices in Model Explorer as the reference.

Snapshot: 2026-11-13 06:52. Availability reflects active probes over the past 24 hours; performance reflects actual calls.

API

Integration example

All models share one OpenAI-compatible endpoint. To switch models, change the model field. One key accesses every model.

# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://api.yomiapi.com/v1",
    api_key="sk-your-yomi-key",
)

resp = client.chat.completions.create(
    model="gemini-4-carbon",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

curl https://api.yomiapi.com/v1/chat/completions \
  -H "Authorization: Bearer sk-your-yomi-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-4-carbon",
    "messages": [{"role": "user", "content": "Hello"}]
  }'