backend new models check - xai - 2026-09-16

Files checked: src/backend/drivers/ai-chat/providers/xai/models.ts, src/backend/drivers/ai-image/providers/xai/models.ts, src/backend/drivers/ai-tts/providers/xai/costs.ts

chat (0) — all upstream grok chat ids/aliases (grok-4.3, grok-4.5, grok-4.6... wait, see note) already match backend id/alias set except as noted below.

image (2)

• grok-imagine-image-2.0 | aliases: none | context: 64000 | created: 2026-08-08 | price: tiered — low/1k: $0.40, low/2k: $0.60, medium/1k: $0.60, medium/2k: $0.80 (per raw payload scale; verify against https://docs.x.ai/developers/pricing) Notes: distinct major version id, not a dated snapshot of grok-imagine-image (base already in backend) — genuinely new.
• grok-imagine-image-pro | aliases: found only inside the upstream aliases[] of parent id grok-imagine-image-quality | context: 16000 | created: 2026-04-03 (parent's created date) | price: see provider pricing page Notes: this name never appears in the backend id/alias set even though its parent id grok-imagine-image-quality is supported — analogous to the known grok-code-fast-1-inside-grok-build-0.1 alias-hiding pattern. Recommend verifying whether "pro" is a distinct paid tier worth adding as an alias or separate model.

skipped (unsupported modality): 2 — grok-imagine-video (created 2026-01-28), grok-imagine-video-1.5 (created 2026-05-27, aliases grok-imagine-video-1.5-preview / grok-imagine-video-1.5-2026-05-30) — video, no xai video provider in backend. legacy upstream models not in backend (verify intent): none

Alias-suggestion notes (not new, base already supported, already collapsed into base, no action needed): several dated grok-4.20-* reasoning/non-reasoning/multi-agent variants, and grok-imagine-image/grok-imagine-image-quality dated snapshots, are already covered by existing backend aliases.