{
  "schema_version": 1,
  "last_updated": "2026-10-19",
  "changes": [
    {
      "id": "2026-10-12-cursor-x-subscription",
      "date": "2026-10-12",
      "date_note": null,
      "tool": "cursor",
      "plan_ids": [
        "cursor-free",
        "cursor-plus",
        "cursor-premium",
        "cursor-super",
        "cursor-ultra",
        "cursor-legacy-pro",
        "cursor-legacy-pro-plus",
        "cursor-legacy-ultra"
      ],
      "kind": "new-plans",
      "headline": "Cursor is now sold as The X Subscription: Free / Plus $8 / Premium $30 / Super $100 / Ultra $200",
      "summary": "New customers buy Cursor through The X Subscription (Grok + Grok Bot + Cursor + X Premium) with one weekly usage pool shared across Grok and Cursor. Premium and above can use third-party models (Claude, GPT, Gemini) but at API list price from the first request, paid from prepaid credit. Cloud Agents and Origin now need Premium ($30). Existing Cursor plans (Pro $20, Pro+ $60, Ultra $200) keep working for now; Cursor says non-migrators will eventually be migrated with notice.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "SpaceXSI: Introducing The X Subscription",
          "url": "https://x.ai/news/x-subscription",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "Cursor Help: Pricing and plans",
          "url": "https://cursor.com/help/account-and-billing/pricing",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "Cursor forum announcement (2026-10-12)",
          "url": "https://forum.cursor.com/t/introducing-the-x-subscription/174450",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "The New Stack (2026-10-13)",
          "url": "https://thenewstack.io/x-subscription-cursor-pricing/",
          "type": "secondary",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-10-observed-chatgpt-pro-500",
      "date": null,
      "date_note": "Launch date not published on the vendor page; first observed by TierVerdict on 2026-10-19 (page showed 'Updated: 2 hours ago').",
      "observed_on": "2026-10-19",
      "tool": "codex",
      "plan_ids": [
        "codex-pro-500",
        "codex-pro-100",
        "codex-pro-200"
      ],
      "kind": "new-plan",
      "headline": "ChatGPT Pro now has three tiers: $100, $200 and a new $500 tier with Ultrafast",
      "summary": "OpenAI lists Pro 100, Pro 200 and Pro 500. Only Pro 500 includes Ultrafast for GPT-6 Astra and GPT-6.1 Sol (8x the Standard usage rate from included allowance). Pro 200 includes more usage than Pro 100; Pro 500 the most. OpenAI does not publish numeric allowances.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "OpenAI Help Center: About ChatGPT Pro tiers",
          "url": "https://help.openai.com/en/articles/9793128-about-chatgpt-pro-tiers",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "OpenAI Codex pricing",
          "url": "https://developers.openai.com/codex/pricing",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-09-29-chatgpt-pro-200-lower-allowance",
      "date": "2026-09-29",
      "date_note": "Date inferred from the end of the grandfathering window OpenAI states (2026-09-29 10am PT); the exact announcement date is not published on the page.",
      "tool": "codex",
      "plan_ids": [
        "codex-pro-200"
      ],
      "kind": "quota-decrease",
      "headline": "New ChatGPT Pro 200 subscribers get a lower usage allowance at the same $200 price",
      "summary": "OpenAI says new Pro 200 subscriptions that aren't eligible for grandfathering 'include a lower usage allowance than previously offered', citing increasingly efficient models. Anyone with an active Pro 200 between 2026-09-22 and 10am PT 2026-09-29 keeps the previous allowance through 2026-10-29, then moves to the lower allowance. Price is unchanged. The numeric allowances are not published.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "OpenAI Help Center: About ChatGPT Pro tiers",
          "url": "https://help.openai.com/en/articles/9793128-about-chatgpt-pro-tiers",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-10-14-codex-gpt-5-5-retired",
      "date": "2026-10-14",
      "date_note": null,
      "tool": "codex",
      "plan_ids": [
        "codex-plus",
        "codex-pro-100",
        "codex-pro-200",
        "codex-pro-500"
      ],
      "kind": "model-access",
      "headline": "GPT-5.5 retired from Codex with ChatGPT sign-in",
      "summary": "OpenAI's Codex pricing page says GPT-5.5 retires from Codex with ChatGPT sign-in on 2026-10-14 at noon PDT (19:00 UTC). API-key usage and Codex sessions authenticated with an API key are not affected.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "OpenAI Codex pricing (banner)",
          "url": "https://developers.openai.com/codex/pricing",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-09-14-claude-code-weekly-limits",
      "date": "2026-09-14",
      "date_note": "Announced 2026-08-29.",
      "tool": "claude-code",
      "plan_ids": [
        "claude-pro",
        "claude-max-5x",
        "claude-max-20x"
      ],
      "kind": "quota-mixed",
      "headline": "Claude Code weekly limits: temporary +50% boost ends, permanent +25% vs the old baseline",
      "summary": "Anthropic said that from 2026-09-14 it permanently raises standard weekly Claude Code limits by 25% for Pro, Max, Team and seat-based Enterprise plans. The temporary +50% increase ended 2026-09-13, so relative to what users had in early September the limit is about 17% lower (100 baseline -> 150 temporary -> 125 permanent). Anthropic did not publish fixed token numbers.",
      "confidence": "vendor-statement-via-press",
      "sources": [
        {
          "label": "BleepingComputer",
          "url": "https://www.bleepingcomputer.com/news/artificial-intelligence/anthropic-is-cutting-claude-codes-current-weekly-limits-by-17-percent/",
          "type": "secondary",
          "checked": "2026-10-19"
        },
        {
          "label": "The Mac Observer",
          "url": "https://www.macobserver.com/news/anthropic-raises-claude-code-weekly-limits-by-25-for-paid-plans/",
          "type": "secondary",
          "checked": "2026-10-19"
        },
        {
          "label": "Thread by @ClaudeDevs (unrollnow)",
          "url": "https://unrollnow.com/status/2093742321473065266",
          "type": "secondary",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-08-28-openai-cursor-wind-down",
      "date": "2026-08-28",
      "date_note": null,
      "tool": "cursor",
      "plan_ids": [
        "cursor-premium",
        "cursor-super",
        "cursor-ultra",
        "cursor-legacy-pro",
        "cursor-legacy-pro-plus",
        "cursor-legacy-ultra"
      ],
      "kind": "model-access",
      "headline": "OpenAI to wind down model supply to Cursor, proposed cutoff 2026-11-12",
      "summary": "OpenAI notified SpaceX that it intends to wind down its contract providing OpenAI models to Cursor, with a proposed shutoff date of 2026-11-12, and will not provide future models to Cursor. OpenAI's help center says users can bring their own OpenAI API key in Cursor's local Chat and Agent, or use the Codex IDE extension. The final termination date was described as pending confirmation between the companies (per search-result summary of OpenAI's help article; not re-verified on the page itself).",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "OpenAI: Our decision on Cursor following its acquisition by SpaceX",
          "url": "https://openai.com/index/our-decision-on-cursor-following-its-acquisition-by-spacex/",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "OpenAI Help Center: Using OpenAI models in Cursor",
          "url": "https://help.openai.com/en/articles/20001506-using-openai-models-in-cursor",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-06-01-copilot-usage-based-billing",
      "date": "2026-06-01",
      "date_note": "Announced 2026-04-27; flex allotments and Max plan announced 2026-05-12.",
      "tool": "github-copilot",
      "plan_ids": [
        "copilot-free",
        "copilot-pro",
        "copilot-pro-plus",
        "copilot-max"
      ],
      "kind": "billing-model",
      "headline": "GitHub Copilot moves to usage-based billing (GitHub AI Credits); new Max plan",
      "summary": "Premium request units were replaced by monthly GitHub AI Credits (1 credit = $0.01) consumed by token usage at model API rates. Base credits match plan price (Pro $10, Pro+ $39, Max $100); a variable flex allotment adds more (Pro 500, Pro+ 3,100, Max 10,000 credits per GitHub Docs today). Completions and next edit suggestions stay unlimited on paid plans. Model fallback was removed; code review also consumes GitHub Actions minutes. Copilot Max was introduced as an upgrade for existing subscribers, with new sign-ups to follow.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "GitHub Changelog 2026-06-01",
          "url": "https://github.blog/changelog/2026-06-01-updates-to-github-copilot-billing-and-plans/",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "GitHub Blog: Copilot is moving to usage-based billing (2026-04-27)",
          "url": "https://github.blog/news-insights/company-news/github-copilot-is-moving-to-usage-based-billing/",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "GitHub Blog: flex allotments and Max (2026-05-12)",
          "url": "https://github.blog/news-insights/company-news/github-copilot-individual-plans-introducing-flex-allotments-in-pro-and-pro-and-a-new-max-plan/",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "GitHub Docs: usage-based billing for individuals",
          "url": "https://docs.github.com/en/copilot/concepts/billing-and-usage/individuals/billing",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-05-claude-code-5h-limits-doubled",
      "date": "2026-05",
      "date_note": "Month only: the exact day is not published in the source we found.",
      "tool": "claude-code",
      "plan_ids": [
        "claude-pro",
        "claude-max-5x",
        "claude-max-20x"
      ],
      "kind": "quota-increase",
      "headline": "Claude Code five-hour limits doubled for paid plans (May 2026)",
      "summary": "The Mac Observer reports Anthropic 'previously doubled Claude Code's five-hour rate limits for Pro, Max, Team, and seat-based Enterprise plans in May'. We did not find a primary Anthropic source for the exact date, so treat as reported.",
      "confidence": "reported",
      "sources": [
        {
          "label": "The Mac Observer",
          "url": "https://www.macobserver.com/news/anthropic-raises-claude-code-weekly-limits-by-25-for-paid-plans/",
          "type": "secondary",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-04-20-copilot-individual-pause",
      "date": "2026-04-20",
      "date_note": "Post updated 2026-05-14.",
      "tool": "github-copilot",
      "plan_ids": [
        "copilot-free",
        "copilot-pro",
        "copilot-pro-plus"
      ],
      "kind": "quota-decrease",
      "headline": "GitHub pauses new Copilot Individual sign-ups and tightens usage limits",
      "summary": "GitHub said it was making changes to Copilot Individual plans 'to protect the experience for existing customers: pausing new sign-ups, tightening usage limits, and...' (the snippet we could read was cut off). GitHub described these as reliability measures ahead of usage-based billing and said it would loosen limits once usage-based billing was in effect.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "GitHub Blog: Changes to GitHub Copilot Individual plans",
          "url": "https://github.blog/news-insights/company-news/changes-to-github-copilot-individual-plans/",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "GitHub Blog: Copilot is moving to usage-based billing",
          "url": "https://github.blog/news-insights/company-news/github-copilot-is-moving-to-usage-based-billing/",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    },
    {
      "id": "2026-03-19-windsurf-quotas",
      "date": "2026-03-19",
      "date_note": "Announced 2026-03-18.",
      "tool": "windsurf",
      "plan_ids": [
        "windsurf-free",
        "windsurf-pro",
        "windsurf-max"
      ],
      "kind": "billing-model",
      "headline": "Windsurf replaces credits with daily/weekly quotas; new $200 Max plan",
      "summary": "Windsurf's credit system was replaced by usage allowances that refresh daily and weekly. Plans: Free $0, Pro $20, Teams $40/seat, new Max $200. Extra usage on paid plans is billed at API pricing. Existing Pro/Teams subscribers were grandfathered at their current price.",
      "confidence": "vendor-primary",
      "sources": [
        {
          "label": "Windsurf blog: Introducing our new Windsurf pricing plans",
          "url": "https://windsurf.com/blog/windsurf-pricing-plans",
          "type": "vendor",
          "checked": "2026-10-19"
        },
        {
          "label": "Devin blog (same post)",
          "url": "https://devin.ai/blog/windsurf-pricing-plans",
          "type": "vendor",
          "checked": "2026-10-19"
        }
      ]
    }
  ]
}