X drops grok-4.5, adds Imagine image/video models and free Playground perk

Between the Aug 17, 2026 and Aug 24, 2026 captures of X's pricing page, Pulse recorded 2 changes: Main pricing table narrowed to only grok-4.6 (grok-4.5 no longer shown, only referenced in a collapsed FAQ); two new Imagine models grok-imagine-image-2.0 (from $0.04/img) and grok-imagine-video-1.5 (from $0.08/sec) were added; 'Build on your own' plan's 4th benefit bullet changed from a generic documentation callout to a specific free Playground callout for testing Grok models before paying. Pulse files it as a packaging change (packaging change, feature change). Pulse's latest capture (Nov 9, 2026) lists grok-4.7 at $0.50 per 1M input tokens (cached) + $6 per 1M output tokens, grok-4.20-0309-reasoning at $2.50 per 1M output tokens + $0.40 per 1M input tokens (cached, long context), grok-imagine-video at $0.07 per output second (720p) + $0.01 per input second of video, grok-4.6 at $6 per 1M output tokens + $0.50 per 1M input tokens (cached) and grok-4.5 at $0.60 per 1M input tokens (cached, long context) + $2 per 1M input tokens.

It lands 19 days after X's previous change, "x.ai: Speech-to-Speech Voice API pricing changed from flat rate to starting-at" (Aug 5, 2026). Before that Pulse recorded "X swaps flagship model — grok-4.5 costs more, sees less, drops coding model" (Jul 13, 2026) and "X launches Grok coding model and image/video/voice API pricing" (May 29, 2026). X has been tracked since 2025-10-11.

In the same window You.com, Synthesia, Read AI and Topaz Labs also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.