Releases & Models
Releases, new models, integrations — and what actually changes for operators.
SpaceXAI announces Grok 4.5, an "Opus-class" model cheaper than rivals
On July 8, 2026, SpaceXAI (formerly xAI) announced Grok 4.5, a model the company describes as comparable in class to Claude Opus 4.7, with public availability expected on July 9. The model costs $2 per million input tokens and $6 per million output tokens, undercutting rival pricing.
Anthropic launches Claude Sonnet 5, its most agentic Sonnet model yet
Anthropic launched Claude Sonnet 5 on June 30, 2026, now the default model on the Free and Pro plans, with a 1 million token context window and promotional pricing through August.
OpenAI previews GPT-5.6 with restricted access
OpenAI announced a limited preview of the GPT-5.6 family (Sol, Terra and Luna) on June 26, currently available to only about 20 companies approved by the US government.
xAI launches Grok V9-Medium, a coding-focused model
Grok V9-Medium, a 1.5-trillion-parameter model trained on real Cursor session data, arrived on Grok and SuperGrok on June 16.
Anthropic launches Claude Fable 5 and Mythos 5
Anthropic launched two frontier models on June 9: Fable 5, the public version with a reinforced safety layer, and Mythos 5, which shares the same underlying weights.
LangChain launches Deep Agents and updates LangGraph to version 1.2.4
LangChain launched Deep Agents in March, a higher-level framework built on LangGraph, while LangGraph itself reached version 1.2.4 on June 2.