Side-by-side on the dimensions that move a production decision.
Feature comparison reflects public documentation as of 2026. Fireworks AI pricing shape: Per-token on open-source + image/video add-ons.. Catalog: Open-source LLMs + image/video; no frontier text..
If you're on Fireworks AI through the OpenAI SDK, you're 90% of the way there. Change the base URL and the key.
Create an account at aigateway.sh/signin and copy an sk-aig-... key from the dashboard.
from openai import OpenAI
client = OpenAI(
base_url="https://api.aigateway.sh/v1",
api_key="sk-aig-...",
)Request shape, response shape, streaming SSE — identical to OpenAI. Model slugs map 1:1 on shared providers. Fireworks AI users typically migrate in under 5 minutes.
Honest take: here are four other credible options. None ship the full multi-modal catalog + sub-accounts + evals under one key, but each has a legit wedge.
Text-LLM aggregator with ~300 model routes.
LLM gateway-as-a-service focused on governance and observability.
LLM observability proxy — strong at logging, not a routing layer.
Cost-aware text-LLM router.