Changelog

The AI Gateway Grows Budgets

The LangWatch AI Gateway takes budgets on every dimension and shows live spend against each one. Claude Code can now reach non-Anthropic models through the router.

LangWatch Team · August 2, 2026 · 3.8.0

What You Can Do Now

Run the LangWatch AI Gateway like a platform

  • Set budgets on every dimension, with live spend visible against each one, plus a redesigned virtual-key drawer for creating and managing keys.

  • Provision through a REST surface aligned with the service layer: six-scope budgets, per-key spend reads, and n-by-n management from the CLI.

  • Point a public status page at a dedicated gateway health endpoint.

  • Reach non-Anthropic models from Claude Code through the router.

  • A three-tier parameter policy for translated lanes, client max_tokens honored on the Anthropic, Bedrock, and Gemini lanes, and hosted provider catalogs listed in GET /v1/models.

  • Upstream provider errors keep their identity through the gateway envelope, so a provider failure reads like that provider's failure.

Get started faster

  • Launch-day polish: pre-provisioned tools, a subscription-first CLI flow, a redirect to your first trace, Opus 5 one-million-token pricing, and a clearer first-project affordance.

  • CLI credentials on /me just work after device login.

Compare and analyze experiments

  • A Bradley-Terry leaderboard chart for the Comparison evaluator, so pairwise results roll up into a ranking.

  • Group the comparison table by dataset-entry metadata.

  • Field selection and row-height controls on the batch evaluation results table.

Export your data

  • Trace export pages with a cursor and includes spans and token metrics. Coding-agent transcripts are available over REST.

  • Export scenario run history as CSV.

  • Trace CSV export stopped dropping a row at every batch boundary.

Let Langy do the clicking

  • Langy navigates the browser for you, opening the resource it surfaced right where you are.

  • View in Trace Explorer opens the traces Langy searched.

Providers, privacy, and storage

  • Google Agent Platform is available as a model provider.

  • When a provider key is refused, we say why instead of just calling it invalid.

  • Data privacy supports PII exception patterns, with a readable ingestion key id.

  • Azure Blob is wired up as a stored-objects write destination.

Traces and search

  • Free-text search now reaches trace and span names.

  • Structured AI SDK output is surfaced in trace spans.

Screenshots

Budgets on every dimension, set right in the virtual-key drawer.

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A breached budget, surfaced clearly.

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Pre-provisioned tools on your personal workspace.

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PII exception patterns in the data privacy editor.

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Langy navigates you straight to the run it surfaced.

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Notes

  • Shipped in langwatch 3.8.0, alongside typescript-sdk 1.1.0.

  • Node 25 and 26 are now supported alongside 24.

  • The whole platform moved onto handled errors, so failures surface as typed, explainable errors rather than generic ones.

  • Under the hood: a large event-sourcing rework (pipelines own their composition, span jobs travel as claim-checks) plus more ClickHouse partition-pruning and skip-index work.