ClaudeDevs
@ClaudeDevs · view on X ↗
Official updates for developers building with @ClaudeAI
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- Jul 24, 2026
Opus 5 is live in Claude Code and the Claude Platform today. A few things worth knowing: 🧵
SummaryClaude's new Opus 5 model is now available, achieving state-of-the-art performance on coding benchmarks with 43.3% on Frontier-Bench, excelling at complex multi-stage coding projects and offering both high-effort and fast modes for different use cases.7 tweets1 min read - Jun 9, 2026
Claude Fable 5 is here. New model generation, new way of working. Here's how to get started in Claude Code and on the Claude Platform: 🧵
SummaryClaude Fable 5 is now available with a new approach to AI assistance. Users can access it via Claude Code or API by specifying the model ID, with features like always-on thinking, simplified prompting, and auto mode for handling complex tasks.9 tweets1 min read - May 28, 2026
Opus 4.8 is live in Claude Code today. A few things worth knowing: 🧵
SummaryAnthropic released Opus 4.8, a new version of Claude that improves code generation performance to 69.2% on SWE-bench Pro and is four times less likely to miss code flaws compared to Opus 4.7. The model defaults to high effort, supports an xhigh effort level for difficult tasks, and integrates with Claude Code's /goal feature and Outcomes for better long-horizon work.6 tweets1 min read