Vellum is an assistant that can send emails, manage a calendar, browse the web, create slides, write code, run deep research, monitor websites and run recurring tasks in the background . It is described as free to download and start , with Vellum Cloud subscriptions starting at $30 per month . The tasks listed for Vellum include sending emails, managing a calendar, browsing the web, creating slides, writing code, running deep research, monitoring websites and running recurring tasks .

Epoch Models Hub vs Vellum in 2026

Q: Does Vellum cost anything?

Vellum is free to download and start . Vellum Cloud subscriptions start at $30 per month for Mighty, $100 per month for Super, or $200 per month for Ultra, with dedicated compute, storage and bundled credits . Vellum is free to download and start . Check its own pages for any other fees the facts here do not state.

Epoch Models Hub, Vellum and Model Odds compared on what each does, what each costs and what to check before you choose one.

By SupaKeeper · 2026-11-03

SupaKeeper is published by LunarWerx, which makes some of the tools compared here.

Epoch Models Hub publishes AI research as a research institute investigating key trends and questions in AI's trajectory and governance ^[1]. It also publishes an open database of large AI data centers ^[1] and offers custom research and advisory services ^[1]. Vellum is an assistant that can send emails, manage a calendar, browse the web, write code and run recurring tasks in the background ^[2]. Model Odds ranks every Anthropic and OpenAI model family by its estimated chance of a release within 30 days ^[3].

Option	What its sources say it does	Cost	Account or install
Epoch Models Hub	A research institute investigating the trajectory and governance of AI ^[1]; an open database of large AI data centers ^[1]; custom research and advisory services ^[1]; a weekly newsletter on its research and commentary ^[1]	not published	not published
Vellum	An assistant that sends emails, manages a calendar, browses the web, creates slides, writes code, runs deep research, monitors websites and runs recurring tasks ^[2]; accessible on Mac, iOS, Android, web app, voice, email, Telegram, Slack and terminal ^[2]; sending emails to new contacts, modifying important files or spending credits requires explicit approval until marked as trusted ^[2]; open source ^[2]	free to download and start ^[2]; first tasks free ^[4]; Vellum Cloud from $30/month Mighty, $100/month Super, $200/month Ultra, with dedicated compute, storage and bundled credits ^[2]	free to download ^[2]; Vellum Cloud runs each assistant in an isolated container ^[2]
Model Odds	Ranks every Anthropic and OpenAI model family by its estimated chance of a release within 30 days ^[3]; a page per company listing every past release ^[3]; a public API for odds, launches and health ^[3]; three estimators with the spread published as an error bar ^[3]; alerts by confirmed email ^[3]	free, and the API is free ^[3]	no account ^[3]; a website with a public API, needing JavaScript ^[3]

The short answer

Epoch Models Hub covers research into the trajectory and governance of AI ^[1]. It publishes an open database of large AI data centers ^[1] and offers custom research and advisory services ^[1]. Vellum is an assistant that can send emails, manage a calendar, browse the web, create slides, write code, run deep research, monitor websites and run recurring tasks in the background ^[2]. Model Odds ranks every Anthropic and OpenAI model family by its estimated chance of a release within 30 days ^[3]. Epoch Models Hub offers research and advisory services ^[1]. Vellum offers an assistant that can send emails, manage a calendar, browse the web, create slides, write code, run deep research, monitor websites and run recurring tasks in the background ^[2]. Model Odds estimates the chance of a release within 30 days for every Anthropic and OpenAI model family ^[3].

What Epoch Models Hub and Vellum each do

Epoch AI describes itself as a research institute investigating key trends and questions that will shape the trajectory and governance of artificial intelligence ^[1]. It publishes an open database of large AI data centers ^[1]. Its team offers custom research and advisory services ^[1]. Epoch AI runs a weekly newsletter with updates on its research and commentary on AI news ^[1]. Vellum's assistant can send emails, manage a calendar, browse the web, create slides, write code, run deep research, monitor websites and run recurring tasks in the background ^[2]. Vellum is described as free to download and start ^[2]. Vellum Cloud subscriptions start at $30 per month ^[2]. Epoch Models Hub offers custom research and advisory services ^[1]. Vellum offers an assistant that can send emails, manage a calendar, browse the web, create slides, write code, run deep research, monitor websites and run recurring tasks in the background ^[2].

What Model Odds is built for

Model Odds is made by the team that publishes this site. Model Odds ranks every Anthropic and OpenAI model family by its estimated chance of a release within 30 days ^[3]. Anthropic and OpenAI each get their own page that lists every past release ^[3]. Each past launch used by the model has to be confirmed by an official post and an independent timeline, and it is listed with its date ^[3]. The estimate is a statistical model of the gaps between recent launches, and it takes into account how long the current wait has already lasted ^[3]. Three estimators run side by side, and the spread between them is published as the error bar ^[3]. Signals read automatically from company SDKs and docs, and from third-party model catalogues when two of them agree, can only raise the odds ^[3]. The estimator can replay any past date without using data from after that date ^[3].

Pricing and fees

Vellum is free to download and start ^[2]. Vellum Cloud subscriptions start at $30 per month for Mighty, $100 per month for Super, or $200 per month for Ultra, with dedicated compute, storage and bundled credits ^[2]. The facts given here do not state a dollar price for Epoch Models Hub's research or advisory services, so no price is published here. ^[1] Model Odds is free, and so is its API, with no account needed ^[3]. If you need the cost of Epoch Models Hub services for your own use, check its own pages, since the facts here do not state one.

Setting it up and daily use

Vellum is free to download and start ^[2]. Vellum's assistant sends emails, manages a calendar, browses the web, writes code and runs recurring tasks in the background ^[2]. Vellum Cloud runs the assistant with subscriptions starting at $30 per month ^[2]. For Vellum, check the available platforms and the tasks its assistant can perform before setting up a workflow ^[2] ^[2]. Model Odds is a website and a public API, so it runs in a browser with JavaScript, and a developer can call the API for data ^[3] ^[3]. The website and the API share one snapshot cached for up to five minutes ^[3]. The API serves per-line odds, the launch record and service health ^[3]. You can sign up with a confirmed email for alerts, and every subscriber gets every company's drops at the same time ^[3]. No account is needed ^[3].

Things to check before you choose

Epoch Models Hub offers research, a data center database and advisory services ^[1] ^[1]. Vellum is an assistant that can send emails, manage a calendar, browse the web and run recurring tasks in the background ^[2]. Check how to book Epoch Models Hub's custom research and advisory services ^[1]. Check which platforms the Vellum assistant reaches before relying on it for a task ^[2]. Model Odds shares one snapshot cached for up to five minutes ^[3]. Check what each tool costs you. Model Odds is free ^[3], Vellum Cloud starts at $30 per month ^[2], and the facts here give no price for Epoch Models Hub, so check its pages.

How to choose

If the need is research on the trajectory of AI or an advisory engagement, Epoch Models Hub's sources cover that ^[1] ^[1]. If the need is an assistant that sends emails, manages a calendar, browses the web and runs recurring tasks, Vellum's sources cover that ^[2]. If the need is an estimate of when an Anthropic or OpenAI model family might ship within 30 days, Model Odds ranks every family by that estimated chance ^[3]. Research on the trajectory and governance of AI is described for Epoch Models Hub ^[1]. An assistant that can send emails, manage a calendar, browse the web and run recurring tasks is described for Vellum ^[2]. A release-timing estimate for Anthropic and OpenAI model families is described for Model Odds ^[3]. Vellum Cloud starts at $30 per month ^[2]. Model Odds is free ^[3]. Epoch Models Hub's price is not in these facts, so check its own pages before you commit.

Frequently asked questions

Is Epoch Models Hub free?

The facts given here do not state a dollar price for Epoch Models Hub's research or advisory services. ^[1] Epoch AI describes itself as a research institute investigating the trajectory and governance of AI ^[1]. Its team offers custom research and advisory services with bookable consultations ^[1], and it runs a weekly newsletter with updates on its research ^[1]. Check Epoch AI's own pages if you need the cost of its services.

Does Vellum cost anything?

Vellum is free to download and start ^[2]. Vellum Cloud subscriptions start at $30 per month for Mighty, $100 per month for Super, or $200 per month for Ultra, with dedicated compute, storage and bundled credits ^[2]. Vellum is free to download and start ^[2]. Check its own pages for any other fees the facts here do not state.

What can Vellum do?

Vellum is an assistant that can send emails, manage a calendar, browse the web, create slides, write code, run deep research, monitor websites and run recurring tasks in the background ^[2]. It is described as free to download and start ^[2], with Vellum Cloud subscriptions starting at $30 per month ^[2]. The tasks listed for Vellum include sending emails, managing a calendar, browsing the web, creating slides, writing code, running deep research, monitoring websites and running recurring tasks ^[2].

What does Model Odds estimate?

Model Odds ranks every Anthropic and OpenAI model family by its estimated chance of a release within 30 days ^[3]. Every past launch it uses has to be confirmed by an official post and an independent timeline ^[3]. The estimate is a statistical model of the gaps between recent launches, taking into account how long the current wait has already lasted ^[3]. Three estimators run side by side, and the spread between them is published as the error bar ^[3].

Is Model Odds free?

Model Odds is free, and so is its API, with no account needed ^[3]. It is a website that runs in a browser and needs JavaScript, with a public API ^[3] ^[3]. The website and the API share one snapshot cached for up to five minutes ^[3]. You can sign up with a confirmed email for alerts, and every subscriber gets every company's drops at the same time ^[3].

Model Odds is free, and so is its API, with no account needed. ^[3]

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