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Imagine image API updates Auto quality. The quality parameter on grok-imagine-image-2.0 now accepts auto , and the default when quality is omitted has moved from medium to auto . Auto currently uses low for image generation and medium for image editing. Images are billed at the quality they are served at. Pass low or medium explicitly to pin a specific quality. See Image Generation . Five reference images. Image editing now accepts up to 5 source images per request (was 3). See Multi-Image Editing . New aspect ratios. Image generation and editing accept 21:9 (cinematic widescreen) and 5:2 (wide banners). See Image Generation . August 12
Action requiredReview affected integrations and migrate before the documented retirement boundary.
Grok 4.6 Grok 4.6, SpaceXAI's frontier model for coding, agentic tasks, and knowledge work, is now available on the xAI API. It has a 500k context window, text and image inputs with text-only output, and no text output limit. Pricing is $2 / $0.50 / $6 per 1M tokens (input / cached input / output) below 200k prompt tokens, and $4 / $1 / $12 above. Reasoning effort supports low, medium, high (default), and xhigh. See the Grok 4.6 overview and the announcement . August 11
Grok 4.5 Grok 4.5, SpaceXAI's model for coding, agentic tasks, and knowledge work, is now available on the xAI API. Priced at $2 / 1M input tokens and $6 / 1M output tokens, with configurable reasoning effort (low, medium, or high; default high). See the Grok 4.5 overview and the announcement .
Text-to-Speech is available The Text-to-Speech API is now generally available. Generate natural-sounding speech from text with Grok. For more details, check out the Text-to-Speech docs . Mar 15
Grok Bot Grok Bot is now available. Durable AI teammates that work on a persistent cloud computer, with messaging, approvals, connectors, and routines. See the Grok Bot overview and Get started .
Grok Build Grok Build is now available in beta. Use the interactive TUI, run headlessly in scripts, or build apps and orchestrators with the Agent Client Protocol. Install with a single command: Bash curl -fsSL https://x.ai/cli/install.sh | bash For more details, see the Grok Build docs . May 1
Grok Voice Think Fast 2.0 is available grok-voice-think-fast-2.0 is now available with Speech to Speech. grok-voice-latest will route to this model starting August 5, 2026. To get started, see the Speech to Speech docs . For more details, see our announcement . July 23
grok-imagine-video-1.5 modalities grok-imagine-video-1.5 now supports text-to-video, image-to-video, and reference-to-video (including optional preset voices), with native 1080p for T2V and I2V. Text-to-video on this model runs as text-to-image then image-to-video under the hood. See Video Generation , Image-to-Video , and Reference-to-Video . July 29
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