Three products · billed separately

Infrastructure for LLM apps,
agents, and eval

Gateway, Task AI, and Eval are independent Phthos products. Each has its own sign-in, plan, and invoice. Credits never transfer.

For builders

Gateway

Route, cache, observe, and orchestrate every LLM call. OpenAI-compatible API at gateway.phthos.ai.

Plans from $0 · 5,000 credits/mo

For operators

Task AI

Chat agents, apps, skills, and workflows for work you already do. Sign in at tasks.phthos.ai.

Plans from $0 · 5,000 credits/mo

For quality

Eval

Ingest traces, score gold sets, self-host or run hosted. SDK at eval.phthos.ai.

Hosted free or Pro $49/mo

Gateway Growth and Task AI Growth are both $20 — they are not the same plan. Eval does not use Phthos credits. See family pricing.