Eligible new accounts get $0.10 in free API credit. Once per account; abuse limits apply. Create an account

Outrun

GOOGLE GEMINI / TEXT

Gemini 4 Carbon API pricing

$1.26 in / $6.30 out per 1M tokens

Gemini 4 Carbon costs $1.26 per 1M input tokens and $6.30 per 1M output tokens (cached input $0.07). Call it with model ID gemini-4-carbon at https://api.outrun.to/v1 using one prepaid Outrun key. Prices as of November 14, 2026.

gemini-4-carbonOpenAI compatible

USD / 1M TOKENS

How much does Gemini 4 Carbon cost per 1M tokens?

Get a key ↗

Standard

Token typeOutrun
Input$1.26
Cached input$0.07
Output$6.30

Billed prices, rounded up to the cent. Prices as of November 14, 2026.

What is Gemini 4 Carbon?

Gemini 4 Carbon is a text model in the Outrun catalog. The standard rate is $1.26 in / $6.30 out per 1M tokens.

What are the Gemini 4 Carbon model details?

Model detailValue
KindText

How do I call Gemini 4 Carbon?

Use your Outrun key and the exact model ID. Requests use prepaid USD credit.

cURL
curl https://api.outrun.to/v1/chat/completions \
  -H "Authorization: Bearer $OUTRUN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-4-carbon",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 8192
}'
Python · OpenAI SDK
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.outrun.to/v1",
    api_key=os.environ["OUTRUN_API_KEY"],
)
reply = client.chat.completions.create(
    model="gemini-4-carbon",
    messages=[{"role": "user", "content": "Hello!"}],
    max_tokens=8192,
)
print(reply.choices[0].message.content)

Which tools work with Gemini 4 Carbon?

Any client that accepts an OpenAI-compatible base URL and a model ID can use gemini-4-carbon. Setup guides: Gemini CLI (Gemini models), Cline (OpenAI Compatible), OpenCode, SillyTavern, LiteLLM.

Use these setup values for this model ID. Recommended output settings can be lower than the route maximum.

Set this valueValue
API formatOpenAI compatible
Base URLhttps://api.outrun.to/v1
Model IDgemini-4-carbon
StreamingYes
R1 formatNo
Include max tokensYes
Reasoning overrideNo
Prompt caching settingNo
CapabilitySupported
StreamingYes
Image inputNot documented
Roo Code readyNo

How does Gemini 4 Carbon compare on cost?

ModelInput / output1,000 chat turns
Gemini 3.8 Flash$0.32 / $1.58$0.79
Gemini 3.7 Flash$0.95 / $4.73$2.37
Gemini 4 Argon$1.20 / $6.00$3.00
gemini-4-argon-2Route 2$0.50 / $0.50$0.65
Gemini 4 CarbonThis model$1.26 / $6.30$3.15
Gemini 3.1 Pro Preview$1.26 / $7.56$3.53

Assumes 1,000 input + 300 output tokens per turn, repeated 1,000 times, at standard-tier rates without caching. Input / output shown per 1M tokens, rounded up to the cent.

Common questions about Gemini 4 Carbon

How much does the Gemini 4 Carbon API cost?

Gemini 4 Carbon costs $1.26 per 1M input tokens and $6.30 per 1M output tokens (cached input $0.07). Prices as of November 14, 2026.

What model ID and base URL do I use for Gemini 4 Carbon?

Use the model ID gemini-4-carbon with the base URL https://api.outrun.to/v1 and your Outrun API key.

Does Outrun store my prompts when I use Gemini 4 Carbon?

Outrun does not store your prompts, images or outputs unless you choose to save them.