feat(anthropic): web fetch beta

[mdrxy]

Note: citations are broken until Anthropic fixes their API

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
langchain	Ready	Preview	Comment	Sep 11, 2025 7:26pm

[codspeed-hq]

CodSpeed WallTime Performance Report

Merging #32894 will not alter performance

_{Comparing mdrxy/anthropic-web-fetch (687d431) with master (83d9385)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 13 untouched

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #32894 will improve performances by 14.05%

_{Comparing mdrxy/anthropic-web-fetch (687d431) with master (83d9385)}

🎉 Hooray! pytest-codspeed just leveled up to 4.0.0!

A heads-up, this is a breaking change and it might affect your current performance baseline a bit. But here's the exciting part - it's packed with new, cool features and promises improved result stability 🥳!
Curious about what's new? Visit our releases page to delve into all the awesome details about this new version.

Summary

⚡ 1 improvement
✅ 13 untouched

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	test_stream_time	37.3 ms	32.7 ms	+14.05%