TWO MORE MODEL DEPRECATIONS (announced 2026-05-08): (1) **Grok Code Fast 1 retires 2026-05-15** -- only T-7 from announcement, accelerated 'due to the model provider deprecation' on xAI's side. Affects Copilot Chat, inline edits, ask + agent modes, code completions. Replacement: GPT-5 mini or Claude Haiku 4.5. If you have Grok Code Fast 1 pinned in any team config, it stops working in a week. (2) **GPT-4.1 retires 2026-06-01** -- joins the GPT-5.2 + GPT-5.2-Codex 6/1 batch already documented. Replacement: GPT-5.5. Adds to the broader 6/1 usage-based-billing transition cliff: by June 1, model lineup loses GPT-5.2, GPT-5.2-Codex, GPT-4.1, AND moves to AI Credits metering simultaneously
2026-05-08•GitHub Changelog (github.blog/changelog/2026-05-08-upcoming-deprecation-of-grok-code-fast-1, github.blog/changelog/2026-05-08-upcoming-deprecation-of-gpt-4-1)
MODEL LINEUP SHRINK (2026-05-07): GitHub Copilot retires Claude Sonnet 4 from its model lineup, mirroring the upstream Anthropic API retirement scheduled for 2026-06-15. If your Copilot org/team had pinned Sonnet 4, it is now unselectable -- migrate to Sonnet 4.6 (1x multiplier, same as Sonnet 4) or Opus 4.7 (15x multiplier, dramatically higher cost). Adds to the 2026-06-01 GPT-5.2 + GPT-5.2-Codex deprecation already documented
2026-05-07•GitHub Changelog (github.blog/changelog), Anthropic deprecations page
MULTI-CHANGE BATCH heading into 2026-06-01 billing cutover (vendor-primary verified 2026-05-04): (1) GPT-5.2 + GPT-5.2-Codex DEPRECATION announced 2026-05-01 -- both retired across all Copilot experiences (Chat, inline edits, ask + agent modes, code completions) on 2026-06-01, except GPT-5.2-Codex remains in Copilot Code Review temporarily. Migrate to GPT-5.5 (7.5x multiplier) or GPT-5.4 (1x). (2) Business self-serve signup PAUSED 2026-04-22 -- joining Pro/Pro+/Student paused since 4/20. New Business orgs get Free or Team only; existing Business customers unaffected. (3) Copilot Code Review begins consuming GitHub Actions minutes on 2026-06-01 alongside the existing premium-request charge -- code reviews now bill TWICE (review request + Actions runtime). Budget impact for teams running review on every PR. (4) Verified multiplier table (paid plans, docs.github.com/en/copilot/concepts/billing/copilot-requests as of 2026-05-04): Claude Opus 4.7 = 15x; Claude Opus 4.6 = 3x (fast-mode preview = 30x); Sonnet 4/4.5/4.6 = 1x; Haiku 4.5 = 0.33x; Gemini 3.1 Pro = 1x; Gemini 3 Flash = 0.33x; GPT-5.5 = 7.5x; GPT-5.4 = 1x; GPT-5.4 mini = 0.33x; GPT-5.4 nano = 0.25x; GPT-5.3-Codex = 1x. Aggregator-circulated 'Opus 4.7 = 27x' and 'Gemini 3.1 Pro = 6x' figures are WRONG vs vendor primary
2026-05-04•GitHub Blog (github.blog/changelog/2026-05-01-upcoming-deprecation-of-gpt-5-2-and-gpt-5-2-codex), (github.blog/changelog/2026-04-22-pausing-new-self-serve-signups-for-github-copilot-business), (github.blog/changelog/2026-04-27-github-copilot-code-review-will-start-consuming-github-actions-minutes-on-june-1-2026), docs.github.com Copilot multiplier table
PRICING REFORM ANNOUNCED 2026-04-27 (effective 2026-06-01): All Copilot paid plans transition off the 'premium requests' metering system to a usage-based AI Credits model. Each tier's monthly price now ALSO becomes its monthly credit allotment ($10 Pro = $10 in credits; $39 Pro+ = $39 in credits; $19 Business = $19/user; $39 Enterprise = $39/user). Above the allotment, requests pay-as-you-go at standard token API rates (input + output + cached). Code completions and Next Edit suggestions remain free across all plans and DO NOT consume credits. Annual subscribers stay on the existing premium-request model until their current plan expires, then drop to Free with a one-time prorated credit transfer covering remaining value. This is a direct response to agent-workload economics that VP Joe Binder cited as the reason for the 4/20 signup pause
2026-04-27•GitHub Blog: 'GitHub Copilot is moving to usage-based billing' (github.blog/news-insights/company-news/github-copilot-is-moving-to-usage-based-billing/)
CRITICAL (2026-04-20): GitHub paused NEW signups for Copilot Pro, Pro+, and Student plans. Copilot Free remains open. Existing subscribers keep access but face tightened usage caps -- VP Joe Binder cited agent workloads consuming more compute than subscription economics support. Refund window for dissatisfied subscribers: 2026-04-20 through 2026-05-20 via GitHub Support. If you were planning to buy Pro or Pro+, you currently cannot. Cursor, Claude Code, and Windsurf are the obvious alternatives during the pause
2026-04•GitHub Changelog (github.blog/changelog/2026-04-20), The Register, AfterDawn
Claude Opus models were pulled from the Pro tier on 2026-04-20. Opus 4.7 remains on Pro+ only; Opus 4.5 and 4.6 are being removed from Pro+ as well. If you specifically subscribed to Pro for Opus access, your tier has materially changed -- the $10 Pro plan now routes to GPT-5.4 + Gemini 3.1 + smaller open models by default
2026-04•GitHub Changelog 2026-04-20, AfterDawn
Issues here are sourced from our editorial sweeps, not real-time telemetry. Newer issues may exist.