xAI (Grok) pricing and rate-limit changes, September 2026
2 dated changes to xAI (Grok) (Grok API) recorded in September 2026, 2026-09-02 to 2026-09-28. Each links the official source. This page lists changes, not xAI (Grok)'s current limit tables.
Pricing
| Date | Change | Source | Status |
|---|---|---|---|
| 2026-09-02 | grok-imagine-image-quality retires 2026-11-02; requests will be served by grok-imagine-image-2.0 (quality=low) at a lower per-image price.Old: grok-imagine-image-quality at its per-image priceNew: Routed to grok-imagine-image-2.0 quality low, lower per-image price | source · current price | verified |
Rate limits
| Date | Change | Source | Status |
|---|---|---|---|
| between 2026-09-10 and 2026-09-28 Backfilled | Voice models brought under the spend-based rate limit tiers.Old: Tiers apply to text and embedding models; Voice increases via contactNew: Tiers apply to text, embedding, and voice models | source · current price | verified |
FAQ
Did xAI (Grok) change its pricing in September 2026?
Yes, 1 recorded change. 2026-09-02: grok-imagine-image-quality retires 2026-11-02; requests will be served by grok-imagine-image-2.0 (quality=low) at a lower per-image price. Source: https://docs.x.ai/docs/release-notes (entry).
Did xAI (Grok) change its rate limits in September 2026?
Yes, 1 recorded change. 2026-09-28: Voice models brought under the spend-based rate limit tiers. Source: https://docs.x.ai/developers/rate-limits (entry).
All xAI (Grok) changes · All companies, September 2026 · Methodology