Requesty alternative.
Requesty's routing, plus everything else a gateway should ship.

# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://router.requesty.ai/v1",
    api_key="rq-...",
)

r = client.chat.completions.create(
    model="openai/gpt-5.4",
    messages=[{"role": "user", "content": "Hello"}],
)

# pip install aigateway-py openai
# aigateway-py: sub-accounts, evals, replays, jobs, webhook verify.
# openai SDK: chat/embeddings/images/audio — drop-in compat per our SDK's own guidance.
from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

r = client.chat.completions.create(
    model="openai/gpt-5.4",
    messages=[{"role": "user", "content": "Hello"}],
)

• Not just text — every modality under one schema.
• Evals + replay + shadow A/B — not just cost-aware routing.
• Sub-account API with per-user spend caps.
• BYOK on every provider — Requesty is managed-only on most.
• No per-request tiers, no subscription.

• Requesty's cost-lookup UI is slick; we match on dashboard v2.