Issues

• Thinking effort API - level options

  webmachinelearning/prompt-api#220 · Filter by author sushraja-msft opened on Sep 28, 2026
  3

• Consider adding a "fastest" LanguageModelSamplingMode value

  webmachinelearning/prompt-api#219 · Filter by author isaacahouma opened on Sep 24, 2026
  1

• Allow clone() to add/override initialPrompts

  webmachinelearning/prompt-api#213 · Filter by author ibnesayeed opened on Aug 7, 2026

• Extend the Message format to support tool calling, extended thinking, and multimodality

  webmachinelearning/prompt-api#209 · Filter by author nico-martin opened on Jun 24, 2026
  17

• [DOC] Improve security-privacy-questionnaire.md: complete truncations, concrete examples, and implementation clarity

  webmachinelearning/prompt-api#205 · Filter by author tonidavis725-max opened on Jun 1, 2026

• Feedback: Localization & Multimodal Detection Testing with Morrigan (Filipino languages)

  webmachinelearning/prompt-api#204 · Filter by author sharmerika opened on Apr 30, 2026

• Proposal: Introduce Categorical Sampling Modes for the Prompt API

  enhancementinterop
  webmachinelearning/prompt-api#203 · Filter by author isaacahouma opened on Apr 29, 2026
  13

• Feature request: Add LanguageModel.isValidConstraint() to check the validity of responseConstraint ahead of time

  webmachinelearning/prompt-api#202 · Filter by author GaurangTandon opened on Apr 15, 2026
  2

• Use of dictionary for LanguageModelCreateOptions , LanguageModelPromptOptions

  webmachinelearning/prompt-api#197 · Filter by author sushraja-msft opened on Mar 28, 2026

• Proposal: Progressive tool discovery

  webmachinelearning/prompt-api#191 · Filter by author hemanth opened on Feb 20, 2026

• Language support question: Prompt API seems to understand non-en/es/ja inputs when inputLanguage is omitted (e.g., hu)

  webmachinelearning/prompt-api#190 · Filter by author scsinfo opened on Feb 17, 2026
  1

• Batch inference API for efficient parallel prompt processing

  enhancement
  webmachinelearning/prompt-api#187 · Filter by author Nithanaroy opened on Jan 31, 2026
  1

• Lightweight single-turn prompting mode

  enhancement
  webmachinelearning/prompt-api#186 · Filter by author Nithanaroy opened on Jan 31, 2026
  6

• params() should throw when parameters aren't known yet

  webmachinelearning/prompt-api#185 · Filter by author tomayac opened on Jan 13, 2026
  2

• Should the prefix defined in prefix be part of the response?

  webmachinelearning/prompt-api#184 · Filter by author tomayac opened on Jan 8, 2026
  5

• [Tag Review] - Structured Output

  tag-tracker
  webmachinelearning/prompt-api#181 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - Tool Use

  tag-tracker
  webmachinelearning/prompt-api#180 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - JSON Schema

  tag-tracker
  webmachinelearning/prompt-api#179 · Filter by author etiennenoel opened on Dec 12, 2025
  1

• [Tag Review] - Memory management

  tag-tracker
  webmachinelearning/prompt-api#178 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - System prompts

  tag-tracker
  webmachinelearning/prompt-api#176 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - Expected input/output languages

  tag-tracker
  webmachinelearning/prompt-api#175 · Filter by author etiennenoel opened on Dec 12, 2025
  1

• [Tag Review] - Model versions and updates

  tag-tracker
  webmachinelearning/prompt-api#174 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - Model Acquisition

  tag-tracker
  webmachinelearning/prompt-api#173 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - Models are assumed to execute locally

  tag-tracker
  webmachinelearning/prompt-api#172 · Filter by author etiennenoel opened on Dec 12, 2025

• [Tag Review] - Cost of computing

  tag-tracker
  webmachinelearning/prompt-api#171 · Filter by author etiennenoel opened on Dec 12, 2025