Anthropic Brings Claude Haiku 5.5 to GitHub Copilot Developer Workflows
GitHub Copilot added support for Anthropic Claude Haiku 5.5, enabling ultra-fast inline code completions and lightweight agent task execution.
GitHub Copilot has officially expanded its model options by integrating Anthropic's Claude Haiku 5.5. Developers can now leverage Haiku 5.5 for lightning-fast code completions, fast agentic chat, and low-latency inline edits.
Claude Haiku 5.5 performance metrics in IDE workflows
Claude Haiku 5.5 provides near-instantaneous token generation while maintaining high reasoning accuracy. It excels at local codebase context comprehension, syntax correction, and automated unit test generation.
$ gh copilot config set-model claude-haiku-5.5
[info] Model switched to Claude Haiku 5.5 (Anthropic)
[info] Latency: 42ms TTFT | Throughput: 140 tokens/sec
Configuring Claude Haiku 5.5 in VS Code and GitHub CLI
Developers can switch models dynamically in VS Code settings or via the GitHub Copilot CLI extension. Haiku 5.5 is available across GitHub Copilot Individual, Business, and Enterprise plans.
Comparing Haiku 5.5 against Sonnet and GPT-4o mini
Benchmarks demonstrate that Claude Haiku 5.5 delivers 3x faster response times than Sonnet models for simple completions, making it the ideal engine for high-frequency editing loops and real-time linting assistance.
Author
Dillip Chowdary
Writes Tech Bytes coverage of AI, engineering, and the tools that actually ship. Editor of Tech Pulse Daily.
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