Welcome to Build Club

GPT-5.5 Instant: smarter, clearer, and more personalized

OpenAI releases GPT-5.5 Instant, an updated default ChatGPT model with improved accuracy, reduced hallucinations by 52.5% on high-stakes prompts, and better performance on image analysis and STEM questions.

Agents for financial services

Anthropic releases ten ready-to-run agent templates for financial services tasks including pitchbook building and KYC screening, with integrations for Microsoft 365 and support for Claude Managed Agents.

How OpenAI delivers low-latency voice AI at scale

OpenAI rearchitected its WebRTC stack to deliver low-latency voice AI at scale, implementing a split relay plus transceiver architecture to handle global routing, connection setup, and stable media round-trip times for natural-feeling voice interactions.

Introducing Cloud Computer: Lowering the Barrier to Building

Manus launches Cloud Computer, a cloud-hosted machine that runs bots and scripts continuously without requiring users to manage servers or cloud infrastructure directly.

5 Best Replit Alternatives in 2026: My Honest Experience Testing AI App Builders

Hands-on comparison of five AI app builder alternatives to Replit, testing each tool's ability to create functional consumer products with evaluation of speed, ease of use, and output quality.

I Turned My Inbox Into Pitch Decks and Visual Dashboards Using Manus. Here’s How.

Guide demonstrating how to automate Gmail and Google Calendar workflows using Manus connectors to streamline meeting preparation, email triage, and administrative tasks.

Introducing GPT Image 2 on Manus Slides

Manus Slides now integrates OpenAI's GPT Image 2 model, delivering 4K photorealistic image generation with improved text rendering and spatial reasoning capabilities directly within presentation workflows.

OpenAI models, Codex, and Managed Agents come to AWS

OpenAI and AWS launch a strategic partnership expanding access to OpenAI models including GPT-5.5, Codex, and Amazon Bedrock Managed Agents in limited preview for enterprise customers.

Claude for Creative Work

Anthropic releases Claude connectors for creative tools including Blender, Adobe, Autodesk, and Ableton, enabling AI integration directly into industry-standard creative software for designers and engineers.

An open-source spec for orchestration: Symphony

OpenAI introduces Symphony, an open-source agent orchestrator that integrates with project management tools like Linear to enable continuous autonomous coding agent execution with human review, achieving 5x increase in pull requests.