openai · frontier · table 2026-10-26

gpt-5-pro

List prices per 1M tokens, what provider caching gives back, and what the cheaper sibling costs for the same work.

Retires on 2026-12-11 (46 days) · announced 2026-06-11 · recommended replacement gpt-5.6-sol. TokenZero flags this model in audits and in X-TokenZero-Warning on every request.
$15input / 1M
$120output / 1M
—cached input / 1M
nonecache write / 1M (no write surcharge)

Same workload, cheaper sibling

100k requests/month of 2,000 input (1,500 static) and 300 output tokens, at list prices. "With cache" assumes the static prefix is served from the provider cache.

ModelPer requestPer monthWith cachevs gpt-5-pro
gpt-5-pro (this model)$0.066$6,600$6,600—

List prices. Cheaper models need an eval before swapping; TokenZero cascade routing is opt-in and advisory by default; an opt-in shadow parity monitor is coming.

Use it through TokenZero

OPENAI_BASE_URL=https://tokenzero.sh/v1   # keep your own key; cache formatting on, routing advisory

Free up to $500/month of routed spend; paid plans are a share of verified savings (Pro Cap: never more than $199/mo). Pricing