Code with Claude Opening Keynote
Anthropic’s first developer conference – “Code with Claude”
๐ Code with Claude Conference Highlights – May 22, 2025 – Video start time 27:28
TL;DR: Anthropic launched Claude 4 Opus and Sonnet 4 at their first-ever developer conference in San Francisco, claiming the world’s best coding model crown with some seriously impressive benchmarks!
๐ฏ The Big News
Claude 4 Models Launched:
- Claude 4 Opus: Scored 72.5% on SWE-bench (the industry’s toughest coding benchmark), edging out OpenAI’s and Google’s best models
- Claude 4 Sonnet: Actually achieved 72.7% on SWE-bench, and with parallel test-time compute gets 80.2% accuracy
- Both can work continuously for up to 7 hours without losing focus ๐คฏ
๐ก Game-Changing Features
Hybrid Reasoning Models:
- Two modes: near-instant responses OR extended thinking for complex multi-step problems
- Can use tools like web search during extended thinking, alternating between reasoning and tool use
- Improved memory capabilities – can extract and save key facts to maintain continuity
๐ ๏ธ Developer Tools
Claude Code Gets Major Upgrades:
- New Claude Code SDK with GitHub integration
- VS Code integration (looks like a nice UI improvement from terminal-only)
- Demo showed Claude Code working on a real GitHub issue for 90 minutes!
๐ The Numbers
Pricing:
- Opus 4: $15/$75 per million tokens (input/output)
- Sonnet 4: $3/$15 per million tokens
Availability:
- Sonnet 4: Available to both free and paying users
- Opus 4: Paying users only
- Conference attendees get 3 months free access to Max plan
๐ฅ Industry Reactions
- GitHub is making Claude Sonnet 4 the foundation for its new Copilot agent
- Cursor calls Opus 4 “state-of-the-art for coding and a leap forward in complex codebase understanding”
- Replit saw 10x revenue increase after integrating Claude 3.7, says Opus 4 is even more precise
โ ๏ธ Safety First
Claude 4 Opus is so powerful it triggered Anthropic’s highest safety protocols (ASL-3) – the first model to reach this level. They had to implement additional safety mitigations before release.
๐ Bottom Line
This feels like a legitimate breakthrough moment for AI coding assistants. When Dario Amodei says “I’m not one to hype things up” and then drops these numbers, you know something big just happened. The 7-hour sustained focus capability alone could be a game-changer for complex development projects.
Perfect timing for developers looking to supercharge their workflows! ๐
Code w/ Claude video links
- Mike Krieger [27:28]: As Anthropic’s CPO, Mike opened the conference, sharing his excitement for the new Claude models and their potential to empower developers. He also talked about the conference agenda.
- Daario Amadei [29:04]: Anthropic’s CEO, Daario, made the big announcement of Claude 4 Opus and Sonnet’s release. He highlighted Opus’s coding and agentic task capabilities and Sonnet’s improvements over version 3.7.
- AI Agents [35:57]: The event emphasized the power of AI agents to augment human creativity, remove bottlenecks in productivity, and enable startups to run experiments in parallel.
- Code Execution Tool [40:56]: A new tool allowing Claude to run code, analyze data, and generate visual insights.
- Cloud Code [42:41]: Generally available, Cloud Code is an agentic coding tool integrated into VS Code and JetBrains, with an SDK for building custom applications.
- Model Context Protocol (MCP) [48:14]: A universal translator and connector for AI agents, enabling seamless connection to existing systems.
- Files API [49:19]: Available in the API, this streamlines how developers access and store documents, simplifying development workflows.
- Prompt Caching [50:07]: An API feature that reduces costs and latency for long prompts, with an extended 1-hour TTL option.
- Cat Woo [53:56]: As Product Manager for Cloud Code, Cat demoed the new Claude 4 models, focusing on their versatility and integration with VS Code and JetBrains.
- Michael Gersonenhopper [1:04:15]: Anthropic’s Head of API Platform, Michael, discussed the Anthropic platform, its capabilities, and how it enables developers to build state-of-the-art AI applications.
- Mario Rodriguez [1:10:29]: From GitHub, Mario announced GitHub Copilot’s support for Claude Sonnet 4 and Opus 4, emphasizing the partnership’s goal of augmenting developer capabilities.
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