Primary official sources. Traceable record by record.Provider docs, changelogs and official announcements only
12primary source pages30verified eventsSep 1, 2026 – Sep 10, 2026 (UTC)
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Public information directory · tailored email service

UTC 2026-09-16 build snapshot, not live metrics. Date states can update; source verification timestamps do not.

Product history

What changed in API Change Watch.

Material product, methodology and dataset updates are recorded here. Provider events live in the event timeline.

Data revision ledger

These are recording times, not official announcement or verification times. Full before/after values remain in the JSON export.

  • · addition · deepseek-v4-pro-routed-to-v41-flash
  • · addition · evt_deepseek_v4_pro_routed_to_v41_flash
  • · addition · deepseek-v4-flash-retired-routed
  • · addition · deepseek-v41-flash-release
  • · revision · deepseek-updates
  • · addition · evt_deepseek_v4_flash_retired_routed
  • · addition · evt_deepseek_v41_flash_release
  • · addition · xai-grok-imagine-image-quality-retirement-november-2026
  • · addition · openai-agent-builder-november-2026
  • · addition · openai-evals-platform-november-2026
  • · addition · openai-reusable-prompts-november-2026
  • · addition · openai-gpt-image-models-december-2026
  • · addition · openai-gpt5-o3-snapshots-december-2026
  • · addition · openai-legacy-audio-realtime-january-2027
  • · addition · openai-transcription-models-february-2027
  • · revision · xai-lifecycle
  • · addition · evt_xai_imagine_quality_retirement_nov_2026
  • · addition · evt_openai_agent_builder_nov_2026
  • · addition · evt_openai_evals_nov_2026
  • · addition · evt_openai_prompts_nov_2026
  • · revision · openai-lifecycle
  • · addition · evt_openai_gpt_image_dec_2026
  • · addition · evt_openai_gpt5_o3_dec_2026
  • · addition · evt_openai_legacy_audio_jan_2027
  • · addition · evt_openai_transcription_feb_2027
View JSON data and revision history

Coverage expansion and event feeds

Expanded to 11 providers with platform-scoped source records. Product updates, action notices and explicit deadlines are distinct. Conflicting Bailian notices remain pending review. Verification dates and date states are distinguished.

English / Simplified Chinese option added

Added complete /zh static routes, a navigation language switch, Chinese event presentation translations, localized countdowns and filters, plus canonical, hreflang and sitemap routes for both languages.

Public directory introduced

Added the public dashboard, event timeline and filters, provider pages, event detail, upcoming deadlines, information quality, privacy, disclaimer, SEO metadata, static API feed and source-verified initial records.

Announcement and diff records separated

Introduced distinct source kinds for official announcements and detected page differences, plus verification state, last-checked timestamp and migration action.

Developer API focus set

Coverage is limited to model and developer API lifecycle changes. Consumer subscription plans are intentionally excluded from the product core.

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