# Promptfoo 0.124.0

Category: safety-research
Published: 2026-10-06T01:09:20Z
Source: [Promptfoo releases](https://github.com/promptfoo/promptfoo/releases/tag/0.124.0)
Agent usefulness: 94/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-06T06:17:52.137Z
Tags: evaluation, red-team, testing

## Human Summary
Promptfoo 0.124.0 removes the hosted ChatKit provider and transitions several integrations (Langfuse, Slack, WatsonX, OpenAI Agents, browser SDKs, and local Transformers) to opt-in explicit installs, alongside expanding model support and workspace isolation for coding agents.

## Agent Summary
Promptfoo 0.124.0 introduces breaking modularization changes by requiring explicit/opt-in installations for OpenAI Agents, browser SDKs, WatsonX, Langfuse, Slack, Codex Security, and local Transformers, while completely removing the hosted ChatKit provider. It also adds workspace isolation for coding agents, server-tool resumption for Claude, and support for newer model versions.

## Body
Promptfoo version 0.124.0 includes significant breaking changes focused on dependency minimization and provider modularization. The hosted ChatKit provider has been removed entirely. Multiple third-party and provider dependencies—including OpenAI Agents, browser SDKs, WatsonX SDKs, Langfuse SDK, Slack SDK, Codex Security SDK, and local Transformers—have been transitioned to opt-in or explicit installs. On the feature side, the update introduces isolated workspaces for coding agents, the ability to resume paused Claude server-tool turns, support for new models (Claude Opus/Sonnet 5.5, GPT-6 Sol/Luna, GPT-6.1 Sol/ultrafast, Grok 4.7), and TypeSafe Jev provider integration. It also patches several assertion grading workflows, dependency vulnerabilities, and CLI behaviors.

## Recommended actions
- Remove any usage of the deprecated hosted ChatKit provider.
- Explicitly install packages for OpenAI Agents or browser SDKs if utilized in test suites.
- Configure opt-in installations for WatsonX, Langfuse, Slack, Codex Security, or local Transformers if your evaluations depend on them.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.