--- {"title": "Codex Forecast vs IsDown in 2026: Pricing and Setup", "description": "Codex Forecast and IsDown compared on what each does, what each costs, how to start with each and what to check before you pick one.", "url": "https://supakeeper.com/codexforecast-vs-isdown/", "date": "2026-10-10"} --- Codex Forecast and IsDown compared on what each does, what each costs, how to start with each and what to check before you pick one. Codex Forecast estimates when OpenAI will next reset Codex usage limits and is free with no account [^1] [^1]. IsDown offers paid plans from $27 per month [^2] and an Outage Data API covering 6,320+ vendors [^2]. | Option | Own fee | Free option | Card fee | |---|---|---|---| | IsDown | Starter $27 per month, $22 per month annually [^2]; Pro $49 per month [^2] | Free 14-day trial, no credit card required [^2] | not published | | Codex Forecast | Free, no paid tier [^1] | Free, no account [^1] | not published | ## The short answer Codex Forecast gives a statistical estimate of when OpenAI will next reset Codex usage limits [^1]. IsDown's sources describe plans for monitoring vendors and an Outage Data API [^2]. On needs, IsDown's page says its Starter plan is for individuals tracking a few services [^2], and its Pro plan is for small teams monitoring key vendors [^2]. Its API provides real-time and historical outage data from 6,320+ vendors [^2]. Codex Forecast's claims cover a reset estimate [^1], free emails when a reset happens [^1] and a public API that needs no key [^1]. ## What IsDown is built for IsDown's pages describe several plans. Starter is for individuals tracking a few services [^2]. Pro is for small teams monitoring key vendors [^2]. Premium is for companies with multiple products or teams [^2]. Business is for organizations with complex dependencies [^2]. The MSP plan is for multi-client monitoring with a unified super admin view [^2]. Its Outage Data API provides real-time and historical outage data from 6,320+ vendors [^2]. Creating an account gives an instant 14-day Pro trial [^2]. The sources here say nothing more about what it monitors for any given vendor, so check its own pages for the list of services you rely on. ## What Codex Forecast is built for Codex Forecast is made by the team that publishes this site. It gives a statistical estimate of when OpenAI will next reset Codex usage limits [^1]. The forecast combines an account it checks every 60 seconds, OpenAI staff announcements and the OpenAI status page [^1]. When a measured refill and an announcement disagree, it trusts the measured refill [^1]. Each reset used in the forecast is listed with a link to where it was announced [^1]. Its named-day predictions are scored in public, misses included [^1]. You can opt in to free emails that are sent when a reset actually happens [^1]. A public API that needs no key gives stats, paginated reset history, forecasts and operational health [^1], and it has a published OpenAPI specification [^1]. It is an independent tracker and is not affiliated with OpenAI [^1]. ## Pricing and fees IsDown's Starter plan costs $27 per month, or $22 per month when paid annually [^2]. Pro costs $49 per month, or $40 per month annually ($480/year) [^2]. Premium costs $99 per month, or $80 per month annually ($960/year) [^2]. Business costs $179 per month, or $150 per month annually [^2]. MSP costs $200 per month and is billed monthly only [^2]. Paying annually saves about 20% [^2]. Education and non-profit customers get 30% off [^2]. It offers a free 14-day trial with no credit card required [^2]. It refunds in full if you cancel within 10 days of subscribing [^2]. It accepts Purchase Orders and invoices for annual plans [^2]. Codex Forecast is free, with no account and no paid tier [^1]. ## Setting it up and daily use IsDown: creating an account gives an instant 14-day Pro trial [^2]. Its Outage Data API serves real-time and historical outage data [^2]. The sources here say nothing more about its setup or routine use. Codex Forecast is a website with a public API [^1]. There is no account to create [^1]. Day to day, you read the forecast on the site, or opt in to free emails sent when a reset actually happens [^1]. If you build your own tools, the API needs no key [^1] and has a published OpenAPI specification [^1]. The site and API share a snapshot that is cached for up to five minutes [^1]. ## Things to check before you choose Ask what you need to watch: the vendors you depend on, or OpenAI Codex usage limits. IsDown's page speaks of 6,320+ vendors [^2], and Codex Forecast's claims speak of Codex usage limit resets [^1]. Check whether IsDown's vendor list includes the services you use, since the facts here do not list them. Check cost and plan size. IsDown's plans start at $27 per month [^2], and Codex Forecast is free [^1]. Check how fresh the data must be. Codex Forecast's site and API share a snapshot cached for up to five minutes [^1]. Check IsDown's own pages for how its alerts are delivered. ## How to choose If you want to know when OpenAI will next reset Codex usage limits, Codex Forecast's claims describe a statistical estimate [^1]. If you want free emails when a reset happens, Codex Forecast's claims describe that [^1]. If you want a free keyless API, Codex Forecast's claims describe one [^1]. If you want outage data from 6,320+ vendors through an API, IsDown's page describes that [^2]. If you want to monitor key vendors as a small team, IsDown's Pro plan page describes that [^2]. If you want a trial before paying, IsDown offers 14 days with no credit card [^2]. ## Frequently asked questions ### Is IsDown free to use? IsDown offers a free 14-day trial with no credit card required [^2]. After that, its Starter plan costs $27 per month, or $22 per month when paid annually [^2]. Paying annually saves about 20% [^2]. Education and non-profit customers get 30% off [^2]. ### Is Codex Forecast free? Codex Forecast is free, with no account and no paid tier [^1]. You can also opt in to free emails that are sent when a reset actually happens [^1]. Its public API needs no key [^1]. The sources here state no other fees. ### How much does IsDown cost per month? IsDown lists Starter at $27 per month [^2], Pro at $49 [^2], Premium at $99 [^2], Business at $179 [^2] and MSP at $200, billed monthly only [^2]. Its page offers monthly and annual billing, and it reads Save ~20% [^2]. ### Does Codex Forecast have an API? Yes. A public API that needs no key gives stats, paginated reset history, forecasts and operational health [^1]. The API has a published OpenAPI specification [^1]. The site and API share a snapshot that is cached for up to five minutes [^1]. ### Is Codex Forecast affiliated with OpenAI? No. Codex Forecast is an independent tracker and is not affiliated with OpenAI [^1]. It combines an account it checks every 60 seconds, OpenAI staff announcements and the OpenAI status page to estimate the next reset [^1]. Each reset it uses is listed with a link to its announcement [^1]. It is free, with no account and no paid tier. [^1] - [Visit Codex Forecast](/go/codexforecast-vs-isdown) ## Sources [^1]: Codex Forecast's own description of itself (the product of this site's publisher) (/go/codexforecast-vs-isdown) [^2]: IsDown, isdown.app/pricing, read 2026-10-08 (https://isdown.app/pricing)