AgentSky
Log inSign up

Gemini 4 Carbon

by Google
google/gemini-4-carbon

Gemini 4 Carbon is a audio and file and image and text and video-input model by Google, available through the AgentSky API as google/gemini-4-carbon at $2.00 per million input tokens and $10.00 per million output tokens, with a 1M context window.

Gemini 4 Carbon is a frontier Gemini 4 model from Google for coding, agentic and complex reasoning work.

  1. Get an API key

  2. Send a request

    curl https://gateway.agentsky.dev/v1/chat/completions \
  -H "authorization: Bearer $AGENTSKY_API_KEY" \
  -H "content-type: application/json" \
  -d '{"model":"google/gemini-4-carbon","messages":[{"role":"user","content":"In one sentence, what can you help me with?"}],"max_tokens":128}'

  3. Run it here, no terminal needed

    Billed to your balance: under $0.01.

  4. Or hand it to your agent

    Use Gemini 4 Carbon through AgentSky.
Model id: google/gemini-4-carbon
OpenAI-compatible base URL: https://gateway.agentsky.dev/v1 · Anthropic base URL: https://gateway.agentsky.dev
Docs: https://agentsky.dev/models/google/gemini-4-carbon.md
Key: <your AgentSky API key>
SDK samples API docs

This model is available through the API. It is not currently offered as an agent’s reasoning model.

Pricing

USD per million tokens, using your plan when signed in.
MeterPer 1M tokens
InputPrice: $2.00
OutputPrice: $10.00
Cache readPrice: $0.1
Cache writePrice: $0.1875

Every response carries its own cost. Balance and per-call records: /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "google/gemini-4-carbon",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions