Alternatives
A Together AI API alternative with one key for 50+ models
Together AI is a cloud platform for running and fine-tuning open-source models through an API. Somnus is simpler if you don't need fine-tuning: prepaid credit, no subscription, and closed plus open models on one key.
What is Together AI?
Together AI is a cloud platform for running and fine-tuning open-source models through an API.
What developers use it for
- Serving open-source models
- Fine-tuning and dedicated deployments
Things to consider
- Focused on open models; closed models like Claude are not part of its catalogue.
- Pricing varies by model and deployment type — see Together AI's pricing page.
Where Somnus fits
Somnus is simpler if you don't need fine-tuning: prepaid credit, no subscription, and closed plus open models on one key.
Every Somnus top-up is credited at 2× or more, and usage is billed at each model's list price, so a dollar of credit buys at least two dollars of usage.
Switching from Together AI: change two settings
from openai import OpenAI
import os
client = OpenAI(
api_key=os.environ["SOMNUS_API_KEY"],
base_url="https://gateway-production-c837.up.railway.app/v1",
)
resp = client.chat.completions.create(
model="claude-sonnet-5",
messages=[
{"role": "user", "content": "Hello"}
],
)
print(resp.choices[0].message.content)If you already use Together AI's OpenAI-compatible endpoint, only base_url, the key and the model name change.
Questions
Is Somnus affiliated with Together AI?
No. Somnus is independent. This page summarises Together AI's public information, linked below.
Can I keep using Together AI too?
Yes. Many teams use Somnus for multi-model access alongside a direct provider account.
Is there a free trial?
New Somnus accounts start with $5 of free credit.
Sources
Last checked 2026-09-29. Prices and features of other providers change — confirm on their sites.
Explore Somnus as another API option
Try it side by side with Together AI — new accounts get $5 of free credit.
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