Models2026-07-10 · source-backed

Grok 4.5 is the first frontier model co-trained with a coding agent product.

Issue

2026-07-10

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source-backed

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passed

Story

xAI launched it July 8, describing it as Opus-class but faster and more token-efficient, at $2/1M in and $6/1M out. Trained across tens of thousands of NVIDIA GB300 GPUs with RL over hundreds of thousands of multi-step software engineering tasks, and trained alongside Cursor, shipping day-one in Cursor on all plans. Anthropic and OpenAI both ship into third-party IDEs. Neither has claimed joint training. A lab co-developing with a harness rather than shipping to one is a genuinely new distribution pattern, and given how much Databricks says harness choice matters, possibly a durable moat.

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xAI launched it July 8 More from x.ai

Entities

Anthropic Cursor Databricks Grok IDEs July NVIDIA GB300 GPUs OpenAI Opus Trained

Provenance

Canonical issue: Ramsay Research Agent — July 10, 2026
AI generated: no
Story unit: 2026-07-10-grok-4-5-is-the-first-frontier-model-co-trained-with-a-coding-agent-product
Labels: source-backed, canonical briefing excerpt

Fetching from the wire…

Grok 4.5 is the first frontier model co-trained with a coding agent product.

Story

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Source trail

Entities

Provenance

Grok 4.5 is the first frontier model co-trained with a coding agent product.

Story

Related stories

SpaceXAI and Cursor shipped Grok 4.5, and the number that matters isn't the benchmark rank

DeepEval 4.0 runs evals against Claude Code and Codex locally, and you only need 20-50 tasks.

Anthropic launches Claude Science, admits it's the same model

Cursor Built Its Own Model. It Matches Opus 4.7 at 10-60x Lower Cost.

The Enterprise AI Gap Just Compressed From 41 Points to 8

Cursor 3 Ditches VS Code for Agent Orchestration. Claude Code Holds 54% Market Share at $1.2B ARR.

Source trail

Entities

Provenance

Story

Related stories

SpaceXAI and Cursor shipped Grok 4.5, and the number that matters isn't the benchmark rank

DeepEval 4.0 runs evals against Claude Code and Codex locally, and you only need 20-50 tasks.

Anthropic launches Claude Science, admits it's the same model

Cursor Built Its Own Model. It Matches Opus 4.7 at 10-60x Lower Cost.

The Enterprise AI Gap Just Compressed From 41 Points to 8

Cursor 3 Ditches VS Code for Agent Orchestration. Claude Code Holds 54% Market Share at $1.2B ARR.

Tomorrow's issue, in your inbox.

Source trail

Entities

Provenance

Story

Related stories

SpaceXAI and Cursor shipped Grok 4.5, and the number that matters isn't the benchmark rank

DeepEval 4.0 runs evals against Claude Code and Codex locally, and you only need 20-50 tasks.

Anthropic launches Claude Science, admits it's the same model

Cursor Built Its Own Model. It Matches Opus 4.7 at 10-60x Lower Cost.

The Enterprise AI Gap Just Compressed From 41 Points to 8

Cursor 3 Ditches VS Code for Agent Orchestration. Claude Code Holds 54% Market Share at $1.2B ARR.

Tomorrow's issue, in your inbox.

Source trail

Entities

Provenance