Antigravity Blog

Latest Updates & Guides

Deep dives into AI agents, coding tools, MCP, and the workflows shaping how developers build.

Model Release

Grok 4.5: SpaceXAI & Cursor's Joint Coding Model

xAI and Cursor co-trained one model and shipped it under both brands on July 8, 2026. The honest read: Fable 5 still tops most charts β€” Grok 4.5's edge is 80 TPS, ~4.2Γ— fewer tokens than Opus 4.8, and $2/$6 pricing. Benchmarks, the EU delay, and how to run grok-4.5.

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Guide

How to QA an App with Claude Code

A hands-on, vendor-neutral workflow for testing web and mobile apps with Claude Code: connect an MCP server (Playwright MCP or Watchr), test in plain English, decide what to test, and know what belongs in CI β€” and what doesn't.

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Model Release

DiffusionGemma: Google's 4x Faster Text Model

Google introduced DiffusionGemma as an experimental open text diffusion model under Apache 2.0. Official-source guide to the 26B MoE design, 3.8B active parameters, 256-token parallel generation, dedicated GPU speed claims, hardware caveats, and when standard Gemma 4 still wins.

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AI Design Workflow

Canva Magic Layers: ChatGPT Images to Editable Designs

Canva says Magic Layers now turns ChatGPT-generated images into editable Canva designs without leaving the chat. Official-source guide to what changed, how Magic Layers works, supported PNG/JPG inputs, AI usage limits, best use cases, and the quality checks to run before publishing.

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Gemini API

Gemini 3.5 Live Translate API Guide

Gemini 3.5 Live Translate is Google's public-preview Live API model for realtime speech-to-speech translation across 70+ languages. Official-source guide to model ID, Live API setup, PCM audio format, translationConfig, ephemeral tokens, limitations, SynthID, and rollout across Google AI Studio, Meet, and Translate.

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Model Release

Claude Fable 5 Benchmarks and Prompting Guide

Claude Fable 5 launched on June 9, 2026 as Anthropic's generally available Mythos-class model. Official-source breakdown of the launch thread, benchmark table, system card data, official images, pricing, safeguards, Opus 4.8 fallback, API behavior, and prompting changes.

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MCP Deep Dive

OpenAI Secure MCP Tunnels: How They Work (2026 Guide)

OpenAI shipped Secure MCP Tunnel on May 27, 2026: connect a private MCP server to ChatGPT, Codex, and the Responses API over outbound-only HTTPS, with no public URL and no inbound firewall rule. Full breakdown of the tunnel-client daemon, the setup commands, the permissions and security model, the OAuth caveat, and what a tunnel deliberately does not fix.

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Product Launch

Antigravity 2.0 Launch: Everything Google Just Shipped (May 2026)

At Google I/O 2026, Antigravity became a four-surface platform: a standalone desktop app, a new Go-based CLI that retires Gemini CLI on June 18, an SDK, a Managed Agents API, scheduled tasks, native voice, and Gemini 3.5 Flash as the default. Full breakdown of every piece, the new $100 Ultra tier, day-one rollout issues, and what changed from v1.

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