https://aitoolchain.io/tools/grok-api New releases and features in Grok API, tracked by The AI Toolchain. en Thu, 20 Aug 2026 10:01:17 GMT https://docs.x.ai/openapi.json https://docs.x.ai/openapi.json Thu, 20 Aug 2026 10:01:17 GMT Grok API now publishes an API — 43 endpoints across 1 area: V1 • V1 (43 endpoints) — create, read, delete https://docs.x.ai/docs/release-notes https://docs.x.ai/docs/release-notes Thu, 20 Aug 2026 09:49:56 GMT Grok API snapshot-20260820 adds Grok 4.6, Grok Bot, video model upgrades, VAD tuning, Priority Processing, public file URLs, and more. • Adds `service_tier: "priority"` parameter on Chat Completions and Responses endpoints to request higher scheduling priority per request; the response's `service_tier` field reports the tier actually applied, and priority rates are billed only when used. • Adds `vad_threshold` parameter (streaming query param and batch multipart field) to the Speech to Text API to tune the voice-activity gate — lower values capture quieter or noisier speech, and `0` disables the gate entirely. • Adds `smart_turn` query parameter to the streaming Speech to Text API for ML-based end-of-turn detection, with `smart_turn_timeout` to set a maximum silence fallback. • Adds `image_file_id`, `video_file_id`, and `reference_image_file_ids` fields across every Imagine endpoint to reference Files API stored assets directly as inputs without re-uploading. • Adds `storage_options` field on Imagine requests to persist generated assets to Files API storage; pair with `storage_options.public_url` to publish a shareable link in one round trip. • Adds `enable_image_search` to Web Search to let Grok search directly for images, with results returned as Markdown image embeds. • Adds `cost_in_usd_ticks` field to the `usage` object in every API response (chat completions, Responses API, image generation, video generation, and streaming) for per-request cost tracking. • Adds `expires_after` and `expires_at` fields to Files API uploads to set automatic expiration and deletion policies. • Adds Public URLs for Files API — any stored file can be turned into a permanent, unauthenticated URL, revocable at any time or with auto-expiry between 1 hour and 30 days. • Adds Context Compaction API to shrink long conversations into a reusable shorter context, reducing cost and time-to-first-token on long agent loops. • Adds WebSocket Responses API mode for driving the Responses API over a single long-lived WebSocket connection for lower end-to-end latency on tool-heavy agent workloads. • New `grok-4.6` model with 500k context window, text and image inputs, no text output limit, and `reasoning_effort` supporting `low`, `medium`, `high` (default), and `xhigh`; priced at $2/$0.50/$6 per 1M tokens (input/cached/output) below 200k prompt tokens, $4/$1/$12 above. • Introduces Grok Bot — durable AI teammates running on a persistent cloud computer with messaging, approvals, connectors, and routines. • Adds `grok-imagine-video-1.5` model supporting text-to-video, image-to-video, and reference-to-video (with optional preset voices) and native 1080p for T2V and I2V. • Adds `grok-voice-think-fast-2.0` for Speech to Speech; `grok-voice-latest` will route to this model starting August 5, 2026. • New Custom Voices capability: clone a voice from a short audio clip and use it across Text-to-Speech and Speech to Speech APIs, managed from the xAI console. • Batch API now supports image generation, image editing, and video generation in addition to chat completions, including server-side and client-side function tools; image and video URLs in batch results expire after 1 hour. • Batch API now accepts JSONL file uploads via the Files API, supporting chat, image, and video requests in a single file.