Changelog

What's new

New features, improvements, and fixes — updated as we ship them.

New

New guide: Token Economics — the unit economics of AI

Every LLM call is metered in tokens, which means every AI feature has a cost of goods sold. Our new guide at /token-economics breaks down the five metrics that define your token economics and the four levers that actually lower the bill.

  • What token economics is, in one quotable definition — and why falling token prices still mean rising token bills.
  • The five core metrics: cost per request, per workflow, per feature, per customer, and failure waste.
  • The optimisation playbook: right-size the model, trim the context, eliminate failure waste, attribute then alert.
  • How every metric in the guide maps to something PromptLayer measures for you out of the box.
New

Never miss a spike again — alerts now find you, starting with Slack

Your AI observability just got a pager. Stop refreshing dashboards: the moment spend or failures move, PromptLayer tells you — in Slack, by email, or straight into your own tooling via webhook.

  • Add to Slack in one click: connect your workspace, pick a channel, and alerts land where your team already lives — no config files, no copy-pasted tokens.
  • Your thresholds, your rules: tell us the line — spend, failure rate, or failure spend — and we will ping you the instant it is crossed.
  • Dial in the volume per project: a minimum-severity floor means you choose between everything, warnings-and-up, or critical-only. Loud when it matters, silent when it does not.
  • Webhooks open the door to everywhere else: every alert ships as a clean JSON payload, ready for Zapier or any tooling you already run.
  • Zero alert fatigue by design: an ongoing condition notifies once and re-arms after a quiet window — you get the signal, never the spam.
  • All of it powered by the detection engine you already trust: failure-rate spikes, latency outliers, high-cost requests and workflows, repeated timeouts, and missing pricing.
Improved

Runtime Intelligence, redesigned

See what your AI is costing you, why it moved, and what to do about it — all at a glance.

  • New summary strip across the top: AI spend with its trend and a responsive sparkline, forecast, potential savings, and an efficiency score — readable at a glance.
  • "What changed" card surfaces the top driver of your spend with a one-click path to the underlying evidence.
  • Quantified recommendation cards: each shows the action, a confidence track, estimated monthly savings, and a model-swap suggestion where one applies.
  • Ownership & allocation card attributes spend to its top feature, customer, or team.
  • Data quality & confidence panel with at-a-glance rings, so you know how much to trust the numbers.
  • Refreshed marketing homepage to match.
New

Runtime Intelligence dashboard

A new project view that explains what changed in your AI spend, why, and what to do next.

  • Executive KPIs for spend (with trend sparkline), forecast, potential savings, and an efficiency score.
  • Spend causality and rules-based recommendations — no prompt content is analyzed.
  • Cost allocation by feature, customer, and team.
  • Runtime health at a glance: success and failure rate, latency, retries, and tool errors.
  • Workflow explorer plus a collapsible model-level supporting-evidence table.