Gemini 4 Carbon
Chat model from Google AI Studio. One API key reaches all 2 providers, with automatic failover.
No card required. Start with 1 million free tokens.
About Gemini 4 Carbon
Gemini 4 Carbon is a chat model published by Google AI Studio, with a 1,048,576-token context window. It scores 139 on AI IQ, ranked #5. Through TrustedRouter it runs on 2 providers, with options in the US and EU, from $2.11 per million input tokens.
- Model ID
google/gemini-4-carbon- Publisher
- Google AI Studio
- Modes
- chat
- Billing
- Credits or your own provider key
Set it up with your agent
Paste this into Claude Code, Cursor or any coding agent.
Use Gemini 4 Carbon through TrustedRouter in this project.
1. Read https://trustedrouter.com/llms.txt
2. Point the OpenAI-compatible client at
https://api.trustedrouter.com/v1 and read the key from
TRUSTEDROUTER_API_KEY.
3. Set the model to google/gemini-4-carbon.
4. Run the tests, then show me the diff before committing.import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.trustedrouter.com/v1",
api_key=os.environ["TRUSTEDROUTER_API_KEY"],
)
response = client.chat.completions.create(
model="google/gemini-4-carbon",
messages=[{"role": "user", "content": "What is the capital of France?"}],
)
print(response.choices[0].message.content)curl https://api.trustedrouter.com/v1/chat/completions \
-H "Authorization: Bearer $TRUSTEDROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "google/gemini-4-carbon",
"messages": [{"role": "user", "content": "What is the capital of France?"}]
}'Providers
Your key goes to the cheapest healthy provider and fails over on its own. Open a row for retention, location and weight format, or see how we check privacy claims and the live speed leaderboard.
| Provider | Input | Cached | Output | Cost per 1M in + out | Details |
|---|---|---|---|---|---|
|
Google AI Studio
|
$2.11 | $0.106 | $10.55 | $12.66 | |
|
Retention Verification: no verified privacy claim. Not currently marked ZDR in TrustedRouter. Google AI Studio and the Gemini Developer API have product- and billing-specific data-use terms, so this route stays outside trustedrouter/zdr. Location Operator country: US Headquarters / registered office: Not verified. Inference: Inference location not verified; no country-specific residency commitment. No inference-location declaration has been verified for this provider. Region pinning through TR: No verified provider-specific location pin documented here. Weight format Unknown Price and speed Input $2.11/1M · Cached input $0.1055/1M · Output $10.55/1M TTFT: insufficient data Speed: insufficient data Last sample: |
|||||
Google Vertex AI
|
$2.11 | $0.106 | $10.55 | $12.66 | |
|
Retention Retention unverified - not strict ZDR: This exact model and upstream ID have not been approved for strict ZDR under the current account controls. Provider-wide ZDR, no-training and successful inference are insufficient. Safety retention or other content storage may apply; the route is excluded until reviewed. This exact model and upstream ID have not been approved for strict ZDR under the current account controls. Provider-wide ZDR, no-training and successful inference are insufficient. Safety retention or other content storage may apply; the route is excluded until reviewed. Location Operator country: US Headquarters / registered office: Not verified. Inference: Inference location not verified; no country-specific residency commitment. No inference-location declaration has been verified for this provider. Region pinning through TR: No verified provider-specific location pin documented here. Weight format Unknown Price and speed Input $2.11/1M · Cached input $0.1055/1M · Output $10.55/1M TTFT: 30.89 s Speed: insufficient data Last sample: |
|||||
Append :nitro to the model ID, or send "provider": {"sort": "throughput"}, to route to the fastest provider instead.
Questions
What model ID should I use for Gemini 4 Carbon?
Use google/gemini-4-carbon as the model field with the TrustedRouter OpenAI-compatible API. Credits routing and provider fallback happen behind that model ID.
Do you log my prompts or outputs?
No. Prompt and output content are intentionally excluded from the control plane and metadata systems. Optional content export requires explicit destination-level configuration.
Which providers serve Gemini 4 Carbon?
TrustedRouter currently lists Google AI Studio, and Google Vertex AI for Gemini 4 Carbon. Provider availability and routing eligibility can change as catalog and health data update.
How much does Gemini 4 Carbon cost through TrustedRouter?
The current lowest Credits input price is $2.11/1M and the lowest Credits output price is $10.55/1M. Prices are per one million tokens and come from the current route catalog.
How do I require zero data retention for Gemini 4 Carbon?
Set provider.min_privacy to zdr on the request. TrustedRouter considers only routes with a recorded zero-data-retention posture and fails closed if no eligible route remains.
Gemini 4 Carbon vs other models
Start building with Gemini 4 Carbon.
No card required. Start with 1 million free tokens.