🤖 AI Agents Weekly: Claude Sonnet 5, Grok Voice Agent Builder, LongCat-2.0, Hosted X MCP, Cursor for iOS, Claude Science, and More
Claude Sonnet 5, Grok Voice Agent Builder, LongCat-2.0, Hosted X MCP, Cursor for iOS, Claude Science, and More
In today’s issue:
Anthropic ships agentic Claude Sonnet 5
xAI launches no-code Voice Agent Builder
Meituan open-sources 1.6T LongCat-2.0
X ships a hosted MCP server
Cursor launches always-on iOS agents
Claude Science app enters beta
Anthropic brings Fable 5 back
Z.ai ships ZCode for GLM-5.2
Google drops Nano Banana 2 Lite
Vercel adds voice agents to AI Gateway
WebKit ships a Safari MCP server
Google introduces TabFM for tables
Bridgewater fine-tunes an expert-judgment model
OpenAI releases GeneBench-Pro
NVIDIA splits a 30B diffusion model
Claude Code steganography sparks debate
Microsoft launches its $2.5B Frontier Company
AutoMem makes memory a trainable skill
ClawArena benchmarks subagent orchestration
Qwen 3.6 wins local development
And all the top AI dev news, papers, and tools.
Top Stories
Anthropic Launches Claude Sonnet 5
Anthropic released Claude Sonnet 5, its most agentic Sonnet yet, built to plan, use tools, and run autonomously at a level that recently required larger, more expensive models.
Agentic core: Sonnet 5 makes plans, drives browsers and terminals, and completes complex tasks where previous Sonnets stopped short, checking its own output without being asked.
Near-Opus at lower cost: Anthropic says performance is close to Opus 4.8 on reasoning, tool use, coding, and knowledge work, at a lower price point.
Broad availability: Now the default on Free and Pro and available to Max, Team, and Enterprise, live across all Claude apps and the Claude Platform.
Intro pricing: Ships with introductory pricing through August, aimed at high-volume agentic workloads.
xAI Launches Grok Voice Agent Builder
xAI introduced Voice Agent Builder, a no-code platform for creating human-like voice agents powered by Grok Voice.
No-code creation: Build production voice agents without writing code, configuring behavior and voice through the builder.
Grok Voice: Agents run on Grok Voice for low-latency, natural-sounding speech aimed at real-time conversational use cases.
Usage pricing: Available today at 0.05 dollars per minute, positioning it for customer support, sales, and other high-volume voice workflows.
Ecosystem play: Extends xAI’s push into agentic products alongside its hosted X MCP and Grok API tooling.