🎉 LTX 2.5 IS LIVE! 🎉 | The wait is over. We’ve just pushed LTX 2.5 to production, and it’s our best update yet.

⚡️ GPT-OSS-120b is now live | Blazing fast - better than TogetherAI

👉 Get $5 welcome credit | One API for every frontier model | Ends soon.

Gpt 5.6 Sol Pro API

Run openai/gpt-5.6-sol-pro through FastInfra's API. Pay per token, no subscription, routed to the cheapest available provider.

Pricing

Gpt 5.6 Sol Pro pricing

Billed per token used. Prices sync automatically from wholesale providers.

Direction Price per 1M tokens
Input$2.10
Output$10.50
Availability

Served by 1 provider

Requests route to OpenRouter by default (cheapest). Pin a specific provider with the :provider suffix.

Provider Upstream model ID
openrouter openai/gpt-5.6-sol-pro
Quickstart

Call Gpt 5.6 Sol Pro in 30 seconds

Works with any OpenAI SDK — change the base URL and API key only.

Python

from openai import OpenAI

client = OpenAI(api_key="YOUR_API_KEY", base_url="https://api.fastinfra.ai/v1")

response = client.chat.completions.create(
    model="openai/gpt-5.6-sol-pro",
    messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)

curl

curl https://api.fastinfra.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.6-sol-pro",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
FAQ

Gpt 5.6 Sol Pro — common questions

How much does the openai/gpt-5.6-sol-pro API cost?

On FastInfra, openai/gpt-5.6-sol-pro costs $2.1/1M input, $10.5/1M output tokens. Billing is per token used, with no subscription.

Is openai/gpt-5.6-sol-pro compatible with the OpenAI SDK?

Yes. FastInfra exposes openai/gpt-5.6-sol-pro through an OpenAI-compatible endpoint at https://api.fastinfra.ai/v1 — point any OpenAI SDK at that base URL with a FastInfra API key and keep your existing code.

Which providers serve openai/gpt-5.6-sol-pro?

openai/gpt-5.6-sol-pro is available from 1 provider(s): openrouter. Requests route to OpenRouter by default (cheapest); append ":provider" to the model ID to pin one.