Sierra

Sierra became a launch partner on OpenAI's new business marketplace. Eligible OpenAI customers can apply part of their existing OpenAI spending commitment to building customer-facing agents on Sierra's platform. The move extends Sierra's earlier involvement with OpenAI Frontier and pairs the marketplace route with Sierra's outcome-based pricing, where customers pay for results such as a retained subscriber or a completed sale.

Buyer takeawayEnterprises with committed OpenAI budgets can now fund Sierra agent projects from that commitment instead of opening a separate procurement line.

Sierra announced a major update to Ghostwriter, its agent-building tool, which now works as a team member in Slack and Microsoft Teams. Teams can mention it in a channel or let it raise issues on its own. It flags problems, proposes improvements and experiments, and tracks A/B tests until results are statistically significant. Sierra said a broader rollout would begin the following week.

Buyer takeawayCustomer experience teams running Sierra agents can push routine tuning and monitoring work into the chat tools they already use, though wide availability only starts in October.

Sierra achieved AIUC-1 certification, a standard for AI agents that tests behaviour under manipulation attempts, data access probes and authorisation limits. The Artificial Intelligence Underwriting Company tested its chat and voice agents in normal and adversarial scenarios, and Schellman audited its technical, legal and governance controls. Testing repeats at least quarterly, with a full audit each year.

Buyer takeawayRisk and procurement teams gain third-party evidence on agent safety controls that sits alongside Sierra's SOC 2, ISO 27001 and ISO 42001 credentials.