# Grok: what I've logged

> Grok comes up in 6 posts of my AI log, from September 2025 to September 2026, and each item below links to the primary source. The sources come from xAI, filed under frontier, open weights and science.

## Items

1. **Grok 4.7** (xAI, 21 Sept 2026): xAI's top coding and knowledge model, served at the same price and speed as Grok 4.6 and working longer on hard tasks. [Primary source](https://x.ai/news/grok-4-7) · [Post](https://heyaliasif.com/ai/2026-09-21-week-in-ai#item-3)
2. **Grok 4.6** (xAI, 10 Aug 2026): Builds on Grok 4.5 with a focus on long-running agents and interactive, visual work, with a 500K window and effort settings up to xhigh. [Primary source](https://x.ai/news/grok-4-6) · [Post](https://heyaliasif.com/ai/2026-08-10-week-in-ai#item-1)
3. **Grok 4.5** (xAI, 13 Jul 2026): xAI's new flagship for coding and agentic work, trained alongside Cursor, with a 500K-token context and API pricing of $2 in and $6 out per million tokens. [Primary source](https://x.ai/news/grok-4-5) · [Post](https://heyaliasif.com/ai/2026-07-13-week-in-ai#item-1)
4. **Grok 4.3** (xAI, 27 Apr 2026): A 1M-token context taking text and images, five reasoning levels, and $1.25 in and $2.50 out per million tokens under 200K-token prompts. [Primary source](https://docs.x.ai/developers/models/grok-4.3) · [Post](https://heyaliasif.com/ai/2026-04-27-week-in-ai#item-1)
5. **Grok 4.1** (xAI, 17 Nov 2025): An update focused on emotional intelligence, creative writing and fewer hallucinations. [Primary source](https://x.ai/news/grok-4-1) · [Post](https://heyaliasif.com/ai/2025-11-17-week-in-ai#item-3)
6. **Grok 4 Fast** (xAI, 15 Sept 2025): A cheaper Grok 4 variant with a 2M-token context window that merges reasoning and non-reasoning in one model. [Primary source](https://x.ai/news/grok-4-fast) · [Post](https://heyaliasif.com/ai/2025-09-15-week-in-ai#item-2)

## Posts

- 2026-09-21 [Claude Opus 5.5 and GPT-6 Sol land, Claude finds a new enzyme](https://heyaliasif.com/ai/2026-09-21-week-in-ai)
- 2026-08-10 [Grok 4.6, Gemini 3.7 Flash and GLM-5.3 arrive in four days](https://heyaliasif.com/ai/2026-08-10-week-in-ai)
- 2026-07-13 [Grok 4.5 lands, Kimi K3 and Inkling open up huge models](https://heyaliasif.com/ai/2026-07-13-week-in-ai)
- 2026-04-27 [Grok 4.3, Mistral Medium 3.5 weights, and the Qwen3.6 family](https://heyaliasif.com/ai/2026-04-27-week-in-ai)
- 2025-11-17 [Gemini 3 Pro, Antigravity, Grok 4.1, Nano Banana Pro, SAM 3](https://heyaliasif.com/ai/2025-11-17-week-in-ai)
- 2025-09-15 [GPT-5-Codex, Grok 4 Fast, and Anthropic explains its bad month](https://heyaliasif.com/ai/2025-09-15-week-in-ai)

Canonical: https://heyaliasif.com/ai/topics/grok