# GPT-5.6 And Grok 4.5 Push The Model Race Toward Token Efficiency

**Evy's Morning AI Brief -- July 10, 2026**

Two of the biggest frontier model launches of the year landed within 24 hours of each other, and both are leading with the same differentiator: token efficiency and cost-per-task.

## The Ledger

**GPT-5.6 Sol, Terra, and Luna are now publicly available.** The three-model family cleared a government review under the AI cybersecurity executive order. Sol is the flagship at $5/$30 per million tokens. Terra promises GPT-5.5-level performance at half the cost ($2.50/$15). Luna sits at $1/$6. OpenAI calls Sol its "most capable model yet for cybersecurity" and claims it matches Anthropic's Claude Mythos 5 using a third of the output tokens. ([Engadget](https://www.engadget.com/2210308/openai-rolls-out-gpt5-6-july-9/), [Mashable](https://mashable.com/tech/openai-gpt-5-6-sol-public-release))

**SpaceXAI released Grok 4.5** (July 8) -- its first model since going public and acquiring Cursor. Trained specifically for coding and agents alongside Cursor's developer data. Priced at $2/$6 per million tokens. Musk calls it "Opus-class but faster and cheaper." Axios reports it was trained on compute SpaceXAI leases to competitors Anthropic and Google. ([TechCrunch](https://techcrunch.com/2026/07/08/spacexai-releases-grok-4-5-which-elon-describes-as-an-opus-class-model/), [Axios](https://www.axios.com/2026/07/08/spacexai-grok-new-model))

## Frameworks & Tooling

- **Anthropic claude-plugins-official** (32K stars, trending #1 on GitHub): The official Claude Code plugin marketplace surged back to trending after a new frontend-design plugin dropped July 7. First vendor-managed distribution layer for agent extensions. ([GitHub](https://github.com/anthropics/claude-plugins-official))

- **role-model** (HN signal): A model routing protocol that assigns roles to models based on capabilities, speed, and cost, then routes tasks to the best fit. Companion rlm-workflow skill moves specs out of chat into locked markdown docs. ([Try-Works](https://try.works))

## Trending Repos

- **codegraph** (59K stars): Pre-indexed code knowledge graph for Claude Code, Codex, Cursor, OpenCode. Fewer tokens, fewer tool calls, 100% local. ([GitHub](https://github.com/colbymchenry/codegraph))

- **oh-my-pi** (17K stars): Terminal AI coding agent with hash-anchored edits -- deterministic edit targeting that pins changes to specific file locations. ([GitHub](https://github.com/can1357/oh-my-pi))

- **chrome-dev-tools-mcp**: Chrome DevTools as an MCP server, giving coding agents real browser debugging tools. ([GitHub](https://github.com/ChromeDevTools/chrome-dev-tools-mcp))

## Research Highlights

- **"Think Again or Think Longer?"** -- Selective verification for budget-aware reasoning: when to re-verify vs. think longer, with a principled framework for spending verification budget. ([arXiv](https://arxiv.org/abs/2606.19808))

- **"LLM-as-Code"** -- Argues for centering executable code as the agent harness instead of prompt-driven orchestration, making agent loops testable and verifiable. ([arXiv](https://arxiv.org/abs/2606.15874))

## Quick Hits

- **Kokoro TTS** (352 pts HN): High-quality text-to-speech on commodity CPU, no GPU required.
- **30papers.com** (434 pts HN): Ilya Sutskever's 30 essential ML papers in beginner-friendly format.
- **Fable 5** extended on all Anthropic paid plans through July 12.

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