Provider watch
X
xAI Elon Musk's AI lab; maker of the Grok model family, served via an OpenAI-compatible API.
Everything we're tracking from xAI, with verified launches and alerts when something ships.
Tracking 4 models · 2 shipped · 2 waiting · 8 in archive
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Official news → Models
Grok 5 Is Grok 5 out yet?
No
Rumored or expected - not officially confirmed by the provider.
Release Date Estimate ?
Today 60 days
xAI's next flagship; rumored ~6T-parameter MoE with multimodal support and a large context window. Targeted for Q2 2026 but slipping.
Details → SpaceX-Cursor LLM Is SpaceX-Cursor LLM out yet?
No
Officially announced by the provider, but not released yet.
No estimate yet
SpaceX and Cursor are jointly releasing their first co-developed general-purpose language model, reported to perform at Opus 4.8 and GPT-5.5 levels.
Details → Grok 4.3 Is Grok 4.3 out yet?
Yes
Publicly available right now - we confirmed access.
Released Apr 17, 2026
xAI's current flagship — native video input, document generation, and stronger tool-calling.
Details → Grok 4.5 Is Grok 4.5 out yet?
Yes
Publicly available right now - we confirmed access.
Released Jul 8, 2026
Grok 4.5 is an AI model from xAI, now publicly released. Prior to release, it entered private beta testing at Tesla and SpaceX; detailed information about its capabilities has not been provided in official announcements.
Details → Previous models
Older and superseded xAI models, kept for history and comparisons. Not on the waiting board.
Grok 4.20 Is Grok 4.20 out yet?
Yes
Publicly available right now - we confirmed access.
Released Feb 17, 2026
xAI's February 2026 release (beta first, full API access in March).
Details → Grok 4.1 Is Grok 4.1 out yet?
Yes
Publicly available right now - we confirmed access.
Released Nov 17, 2025
November 2025 update focused on speed and emotional intelligence.
Details → Grok 4 Heavy Is Grok 4 Heavy out yet?
Yes
Publicly available right now - we confirmed access.
Released Jul 10, 2025
The multi-agent heavy tier launched alongside Grok 4.
Details → Grok 4 Is Grok 4 out yet?
Yes
Publicly available right now - we confirmed access.
Released Jul 9, 2025
xAI's mid-2025 flagship with native tool use.
Details → Grok 3 Is Grok 3 out yet?
Yes
Publicly available right now - we confirmed access.
Released Feb 17, 2025
Trained on the Colossus supercluster; introduced Think mode.
Details → Grok-2 Is Grok-2 out yet?
Yes
Publicly available right now - we confirmed access.
Released Aug 13, 2024
Brought image understanding and big benchmark gains.
Details → Grok-1.5 Is Grok-1.5 out yet?
Yes
Publicly available right now - we confirmed access.
Released Mar 28, 2024
Improved reasoning and a 128K context window.
Details → Grok-1 Is Grok-1 out yet?
Yes
Publicly available right now - we confirmed access.
Released Nov 4, 2023
xAI's first model, launched alongside the Grok chatbot on X.
Details → News, leaks & rumors
AWS published implementation guidance for accessing xAI's Grok 4.3 through Amazon Bedrock's Mantle endpoint, including its OpenAI-compatible API path, configurable reasoning, tool calling, and regional constraints.
Amazon · Jul 16, 2026
Read at aws.amazon.com → Read OutYet report Elon Musk called Grok 4.5 'roughly comparable to Opus 4.7, but much faster,' pitching it as a cheaper, more token-efficient alternative at $2/$6 per million tokens. It is the first SpaceXAI model co-trained with Cursor (Anysphere), released July 8 with public availability July 9.
TechCrunch · Jul 8, 2026
Read at techcrunch.com → SpaceXAI launched Grok 4.5, its 'smartest model' for coding, agentic tasks, and knowledge work, trained jointly with Cursor. xAI reports SWE-Bench Pro 64.7%, Terminal-Bench 2.1 83.3%, and #1 on Harvey's Legal Agent Benchmark, served at ~80 TPS with roughly 2x token efficiency, priced at $2/$6 per million input/output tokens. Public access rolls out July 9; EU availability expected mid-July.
xAI · Jul 8, 2026
Read at x.ai → Elon Musk calls Grok 4.5 an 'Opus-class' AI model. Here's what that means WION
xAI · Jul 8, 2026
Read at news.google.com → Elon Musk confirms Grok 4.5 public release following positive Beta feedback The Eastleigh Voice
xAI · Jul 8, 2026
Read at news.google.com → Elon Musk says Grok 4.5 to launch on July 9, calls it 'Opus-class' The Economic Times
xAI · Jul 8, 2026
Read at news.google.com → SpaceXAI gearing up for upcoming Grok 4.5 release TestingCatalog AI News
xAI · Jul 7, 2026
Read at news.google.com → Tesla Caps Employee AI Use To $200 A Month Except For Grok AutoSpies.com
xAI · Jul 3, 2026
Read at news.google.com → Tesla caps employee AI spending at $200/week except for Grok Electrek
xAI · Jul 3, 2026
Read at news.google.com → Elon Musk's SpaceX showcases Grok-powered smartphone built to reshape AI interaction TweakTown
xAI · Jul 3, 2026
Read at news.google.com → With one week left in June, xAI's rumored ~6T-parameter Grok 5 remains in training and unreleased; Musk's Q1 and Q2 targets both slipped. Polymarket's June-30 release contract has fallen to roughly 7–12%. xAI is not yet tracked by OutYet.
Lines.com · Jun 23, 2026
Read at lines.com →