https://aitoolchain.io/tools/promptlayer New releases and features in PromptLayer, tracked by The AI Toolchain. en Fri, 21 Aug 2026 09:52:38 GMT https://docs.promptlayer.com/changelog https://docs.promptlayer.com/changelog Fri, 21 Aug 2026 09:52:38 GMT PromptLayer adds trace I/O previews and a redesigned tabbed span details panel alongside Gemini 3.7 Flash support. • Adds trace input/output previews at the top level of the trace detail view, automatically extracted from the first user message and final assistant response, visible above the span tree — especially useful for multi-step traces with tool calls. • Redesigns the span details panel with a tabbed interface separating metadata, inputs/outputs, and entity references, plus hover cards for quick span previews without opening the full panel. • Adds support for the Gemini 3.7 Flash model with updated pricing and reasoning capabilities. • Highlights trace entities (prompts, workflows, evaluations) in the trace view for better context. https://docs.promptlayer.com/openapi.json https://docs.promptlayer.com/openapi.json Thu, 20 Aug 2026 10:01:58 GMT PromptLayer now publishes an API — 143 endpoints across 22 areas: External Ids, Tables, Smart Tables, … • External Ids (22 endpoints) — create, read, update, delete • Tables (22 endpoints) — create, read, update, delete • Smart Tables (21 endpoints) — create, read, update, delete • Reports (11 endpoints) — create, read, update, delete • Datasets (9 endpoints) — create, read • Env Vars (8 endpoints) — create, read, update, delete • Tracking (8 endpoints) — create, read • Prompt Templates (7 endpoints) — create, read, update, delete • 14 more areas: Workflow, Folders, Skill Collections, Tool Registry, Evaluations, Rest, Group, Metadata, Otlp, Prompt, Prompts, Request, Score, Spans https://docs.promptlayer.com/changelog https://docs.promptlayer.com/changelog Thu, 20 Aug 2026 09:50:04 GMT PromptLayer adds real-time eval progress tracking, granular scorecard status, and centralized MCP server management for workspaces. • Adds MCP Servers page in workspace settings to centrally connect, configure, test, and manage external MCP servers — configure once per workspace and reference tools across multiple prompt templates. • Supports automatic tool discovery and import from connected MCP servers, with connectivity testing before deployment and credential management via workspace environment variables. • Adds real-time evaluation progress tracking via WebSocket delivery: SDK can now publish planned row counts before writing data, and the dashboard displays 'X of Y rows complete' with explicit lifecycle states (`running`, `completed`, `aborted`). • Adds granular scorecard status reporting with per-row verdict-based counters (passed, failed, warned, running, queued) instead of simple completion percentages, calculated from database truth rather than Redis approximations. https://docs.promptlayer.com/changelog#august-20-2026 https://docs.promptlayer.com/changelog#august-20-2026 Thu, 20 Aug 2026 00:00:00 GMT PromptLayer adds trace input/output previews and a redesigned tabbed span details panel for faster trace inspection. • Adds trace input/output previews to the trace detail view, automatically extracting the first user message and final assistant response and displaying them above the span tree — especially useful for multi-step traces with tool calls. https://docs.promptlayer.com/changelog#august-18-2026 https://docs.promptlayer.com/changelog#august-18-2026 Tue, 18 Aug 2026 00:00:00 GMT PromptLayer adds real-time evaluation progress tracking with WebSocket delivery and granular per-row scorecard status breakdowns. • SDK can now publish planned row counts before writing data, enabling 'X of Y rows complete' live progress display in the dashboard during evaluations. • WebSocket delivery pushes evaluation progress updates to the UI immediately, eliminating the need for polling. • Scorecard progress now provides granular per-row verdict-based counters — passed, failed, warned, running, and queued — beyond simple completion percentages. • Scorecard progress calculations now use database truth instead of Redis approximations for accuracy. • Partial scores remain visible in scorecards during long-running evaluations. https://docs.promptlayer.com/changelog#august-12-2026 https://docs.promptlayer.com/changelog#august-12-2026 Wed, 12 Aug 2026 00:00:00 GMT PromptLayer adds centralized MCP Server Management and Smart Tables column import/conversion capabilities. • Adds an MCP Servers page in workspace settings to centrally configure, test, and manage external Model Context Protocol servers, with credentials stored in workspace environment variables. • Enables MCP servers configured once per workspace to be referenced across multiple prompt templates, with automatic tool discovery and import from connected servers. • Adds 'Import' action to Request and Trace column cells in Smart Tables to link existing request logs or traces as anchor columns, auto-populating nested metadata (latency, cost, model, tokens). • Adds column conversion in Smart Tables: right-click a column header to convert Prompt Template columns to Request columns, or Workflow columns to Trace columns, with downstream columns auto-recalculating. https://docs.promptlayer.com/changelog#august-10-2026 https://docs.promptlayer.com/changelog#august-10-2026 Mon, 10 Aug 2026 00:00:00 GMT PromptLayer Playground gains OpenRouter audio, image generation, and TTS model support with streaming playback • Adds OpenRouter audio-capable chat model support (e.g., GPT-4 Audio) in the Playground with real-time streaming voice output, pre-configured voice options in the model parameters panel, and browser-playable playback controls. • Adds OpenRouter image generation models (including vector-capable models like Recraft) to the Playground with configurable aspect ratio, quality, and output format parameters; SVG output models automatically surface appropriate format options, and images display inline with download and preview. • Adds OpenRouter text-to-speech model support (MiniMax Speech, Deepgram, MAI Voice) in the Playground with model-specific voice selection, automatic response format adaptation (MP3/PCM) per provider, and audio speed control where the underlying model supports it. • Model parameter controls now intelligently show or hide based on actual API support for the selected model. • Playground streaming toggle automatically locks when streaming is required or disallowed by the selected model. https://docs.promptlayer.com/changelog#august-05-2026 https://docs.promptlayer.com/changelog#august-05-2026 Wed, 05 Aug 2026 00:00:00 GMT PromptLayer adds AI-generated trace summaries and empty tool trajectory validation for agent flow analysis. • Adds AI-generated natural language summaries on the trace detail page, automatically describing what each trace accomplishes by analyzing spans and tool calls, with totals for tool calls, LLM requests, tokens, and cost at a glance. • Summaries regenerate automatically as traces grow to stay accurate. • Trajectory evaluators now support empty tool lists in trajectory scenarios to assert a workflow made zero tool calls, enabling validation of fallback paths and flows that must avoid external API calls. https://docs.promptlayer.com/changelog#august-03-2026 https://docs.promptlayer.com/changelog#august-03-2026 Mon, 03 Aug 2026 00:00:00 GMT PromptLayer adds OpenRouter integration, enabling access to hundreds of models across OpenAI, Anthropic, Google, and Meta via a single API key. • Integrates with OpenRouter as a new provider, routing requests across OpenAI, Anthropic, Google, Meta, and other AI labs through a single API key with unified cost and usage tracking in the PromptLayer dashboard. • Supports specialized OpenRouter model types including chat, image generation, video generation, and text-to-speech through the integration. • Enhances the model selector UI to display available API types per provider. https://docs.promptlayer.com/changelog#july-30-2026 https://docs.promptlayer.com/changelog#july-30-2026 Thu, 30 Jul 2026 00:00:00 GMT PromptLayer adds Request Volume Tail Analytics with interactive time-series charts filterable by template, invocation site, and custom signals. • New Request Volume Tail Analytics view shows request volume trends over time with interactive time-series charts, breakdowns by template name, invocation site, or custom signals, and historical request pattern analysis. https://docs.promptlayer.com/changelog#july-29-2026 https://docs.promptlayer.com/changelog#july-29-2026 Wed, 29 Jul 2026 00:00:00 GMT PromptLayer adds Signals for automated traffic labeling, Wrangler scorecard support, and workflow input variables in analytics. • Introduces Signals for automated production traffic labeling: evaluate requests with yes/no questions, with reasoning and quote support per evaluation. • Adds ability to test Signals against real logs before enabling them in production. • Adds filtering of request logs by Signal results directly from the UI. • Adds per-hook sampling rate configuration to control Signal evaluation frequency. • Adds a new 'Input Variables' column to the workflow version analytics table, showing all input parameters passed to each workflow execution. • Adds click-to-expand popover in the analytics table to view full workflow input variable values without leaving the table. • Wrangler can now create, retrieve, and recalculate scorecards via natural language commands, including multi-criterion scorecards with STRUCTURE and ASSERT_VALID validators. • Adds JSON Schema validation criteria support alongside structured output prompts in scorecard configuration. • Supports triggering scorecard recalculations for specific rows or evaluation steps programmatically through Wrangler. • Signal bindings can now be individually updated or deleted without replacing the entire configuration. • Supports multiple bindings for the same prompt template with different version or label filters. https://docs.promptlayer.com/changelog#july-28-2026 https://docs.promptlayer.com/changelog#july-28-2026 Tue, 28 Jul 2026 00:00:00 GMT PromptLayer adds full trace visibility for Playground/Smart Table runs, Evaluation Drafts, and custom Signal Annotations • Adds Playground Evaluation Drafts, letting users save evaluations as draft Tables before publishing — supports mapping Playground variables to Table columns, configuring row filters, and exporting drafts as permanent Tables optionally linked to prompt versions in the registry. • Adds Signal Annotations to annotate request logs with custom signals (custom names, colors, and scope rules) that automatically apply to matching requests and appear as visual indicators throughout the dashboard. • Enables filtering and searching requests by signal presence in the request logs view. • Supports testing signals against historical request logs before deployment to verify matching behavior. • All Playground runs and Smart Table cell executions now generate complete traces in the Traces view, including per-run traces for batch/completion runs and conversation-level traces for chat sessions. • Smart Table prompt cells now show full execution traces including LLM calls and tool invocations. • Raises the limit on input sets in draft evaluations to up to 50 input sets. https://docs.promptlayer.com/changelog#july-27-2026 https://docs.promptlayer.com/changelog#july-27-2026 Mon, 27 Jul 2026 00:00:00 GMT PromptLayer adds custom date range filtering to workflow version and prompt template analytics. • Workflow version analytics now support custom date ranges, enabling comparison of latency, cost, and execution count across specific time periods. • Prompt template analytics gain date range filtering for granular performance insights, including the ability to export analytics data for specific time windows.