https://www.nextaimodel.com/lines/xai-grok Every new release in xAI's Grok line, from Next AI Model. Newest 20 releases. en Sat, 24 Oct 2026 17:12:56 GMT https://www.nextaimodel.com/models/grok-4-7 https://www.nextaimodel.com/models/grok-4-7 Mon, 21 Sep 2026 12:00:00 GMT xAI xAI · Grok line · released September 21, 2026. A larger base model than Grok 4.6, trained longer on multi-hour agentic tasks, at the same $2 / $6 price and the same 500k-token context. https://www.nextaimodel.com/models/grok-4-6 https://www.nextaimodel.com/models/grok-4-6 Wed, 12 Aug 2026 12:00:00 GMT xAI xAI · Grok line · released August 12, 2026. Builds on Grok 4.5 with a longer extra training run; adds an xhigh reasoning-effort level, and cached input now costs $0.50 per million tokens, up from $0.30. https://www.nextaimodel.com/models/grok-4-5 https://www.nextaimodel.com/models/grok-4-5 Wed, 08 Jul 2026 12:00:00 GMT xAI xAI · Grok line · released July 8, 2026. Added configurable reasoning effort (low, medium, high) with a 500K-token context window, priced at $2 per million input tokens and $6 per million output tokens. https://www.nextaimodel.com/models/grok-4-3 https://www.nextaimodel.com/models/grok-4-3 Fri, 17 Apr 2026 12:00:00 GMT xAI xAI · Grok line · released April 17, 2026. xAI's update to Grok 4.20: it can now hold a whole book of text at once, watch video, and costs 40% less for the text you send in — with a few points higher on a broad skills test. https://www.nextaimodel.com/models/grok-4-20 https://www.nextaimodel.com/models/grok-4-20 Tue, 17 Feb 2026 12:00:00 GMT xAI xAI · Grok line · released February 17, 2026. xAI's new flagship Grok: the first version that retrains itself every week from real-world feedback, and in March 2026 it held the record on Artificial Analysis's test for admitting it doesn't know instead of making up an answer. https://www.nextaimodel.com/models/grok-4-1 https://www.nextaimodel.com/models/grok-4-1 Mon, 17 Nov 2025 12:00:00 GMT xAI xAI · Grok line · released November 17, 2025. https://www.nextaimodel.com/models/grok-4 https://www.nextaimodel.com/models/grok-4 Wed, 09 Jul 2025 12:00:00 GMT xAI xAI · Grok line · released July 9, 2025. xAI scaled up reinforcement-learning training for Grok 4 by over an order of magnitude in compute, with native tool use and real-time search and a 256,000-token API context window, at the same $3 / $15 price as Grok 3. https://www.nextaimodel.com/models/grok-3 https://www.nextaimodel.com/models/grok-3 Mon, 17 Feb 2025 12:00:00 GMT xAI xAI · Grok line · released February 17, 2025. https://www.nextaimodel.com/models/grok-2-1212 https://www.nextaimodel.com/models/grok-2-1212 Sat, 14 Dec 2024 12:00:00 GMT xAI xAI · Grok line · released December 14, 2024. https://www.nextaimodel.com/models/grok-2 https://www.nextaimodel.com/models/grok-2 Tue, 13 Aug 2024 12:00:00 GMT xAI xAI · Grok line · released August 13, 2024. https://www.nextaimodel.com/models/grok-1-5 https://www.nextaimodel.com/models/grok-1-5 Wed, 15 May 2024 12:00:00 GMT xAI xAI · Grok line · released May 15, 2024. https://www.nextaimodel.com/models/grok-1 https://www.nextaimodel.com/models/grok-1 Fri, 03 Nov 2023 12:00:00 GMT xAI xAI · Grok line · released November 3, 2023.