NewCo-hosts that switch languages

Invite an AI co-host to your next episode

It joins your recording like a guest, talks in whatever language you’re speaking, and hands you the show notes when you hang up.

Start recording freeWorks in any browser
RecordingYour podcast, Ep. 4123:07
Host on cameraYou · Host
Maya AISpeaking
Guest on cameraGuest
Maya ঠিক বলেছেন! And the numbers back you up, let me explain.Live caption · Bangla + English
Rafi raised a handWants to fact-check the number just mentioned.
After the sessionTranscript, summary and 3 clip ideas are ready
Bring agents built withn8nMakeZapierCrewAIOpenAIyour_own_code()

A recording studio where AI co-hosts sit at the mic with you

Open a room, send guests a link, and add your co-host with one click. Everyone joins from the browser. The AI hears everyone, speaks when it should, and gets its own recording track.

A podcaster recording at his desk with a microphone and headphones
Recording · 00:23:07
Glowing orb representing the AI co-hostMaya AI · speaking

Maya ঠিক বলেছেন। But here’s the part listeners still trust people for.

A real participant

A guest with its own seat

Your co-host joins like anyone else: its own tile, its own voice, its own name. Guests see an AI label, and your editor gets a separate audio track for it.

  • Pick from 10 voices and give it a speaking style
  • Write its role, personality and background notes
  • Start from templates: co-host, fact-checker, historian, comedian
Two people recording a podcast interview
AI co-host tile
Rafi AI · fact-checker
Studio microphone and headphones in front of an editing screen
Maya Welcome back to the show, everyone.Maya আজকের অতিথি একজন সাংবাদিক, and she has opinions.Maya तो चलिए शुरू करते हैं।
Any language, mixed freely

Talks the way your show talks

Switch from English to Bangla to Hindi mid-sentence and your co-host follows. Or lock it to one language for a single-language show.

Englishবাংলাहिन्दीاردوالعربيةEspañolFrançais+5 more
You run the room

Speaks when it should, not all the time

Choose how each agent behaves, and change it live without stopping the recording. Mute, summon or remove any agent in one click.

Condenser microphone in a dark studio
On callOnAnswers when named or summoned
Raise handAsks you first, you approve
FreeJumps in when it has something useful

Your co-host through busy weeks

[Rating and review count, once the first reviews are in]

“[A quote from your first beta podcaster about recording with an AI co-host.]”

[Podcaster name][Show name]

“[A quote about mixing languages on the show, ideally Bangla and English.]”

[Podcaster name][Show name]
[Show logo]

“[A quote about bringing their own n8n agent onto the show.]”

[Name][Host of show]
Bring your own agent

Already have an agent? Invite it to the show.

Paste your agent’s web address. When it’s its turn, we send it what was just said; it replies in text, and we speak it in the voice and language you chose.

  • Signed requests, so only Cocast can call your agent
  • You choose how much of the conversation it sees
  • A test button checks it before you go live
Read the developer docs
webhookopenai-compatibletest
// Cocast sends your agent the conversation
{
  "trigger": "mentioned",
  "agent_name": "Sales bot",
  "transcript": [
    { "speaker": "Tanvir",
      "text": "Sales bot, what does it cost?" }
  ]
}

// your agent replies, Cocast speaks it
{ "action": "speak",
  "reply": "Starter is nineteen dollars a month." }

On air in three steps

Broadcast microphone on a boom arm
1

Create your co-host

Pick a template or start fresh: name, role, personality, voice and languages. It takes about a minute.

People working together at a laptop
2

Send guests a link

Guests join from Chrome, Safari or Firefox. No downloads, no accounts. Add your co-host with one click.

Recording studio with mixing desk and guitars
3

Record and publish

End the session and your recordings, transcript, summary and show notes are waiting.

After every session

Show notes that write themselves

A full transcript, a summary, topic notes and the most quotable moments, written in the language of your episode.

Ep. 41: Will AI read the news?48 min · 3 people · 1 AI co-host · transcript readySummaryTanvir and Ariana debate whether AI news anchors can earn trust. Maya argues that reading the news and understanding it are different jobs.Clip-worthy moments“খবর পড়া আর খবর বোঝা এক জিনিস না.” Maya, 23:07“The anchor is the least interesting part of the newsroom.” Ariana, 31:40

Made for every kind of show

Microphone with warm stage light
Interview showsA co-host who preps follow-ups
Portrait in violet light
Language showsBilingual hosting, live translation
Portrait of a man on a dark background
DebatesA devil’s advocate on demand
Smiling woman in a red top
Solo creatorsNever record alone again
Cocast for business

Bring your team’s agents into every meeting

Your sales, support or research agent joins internal calls and webinars with its own voice. Shared agents, admin controls and data terms included.

A team meeting in a bright officeSales bot AI joined the weekly pipeline call

Simple plans, priced in agent time

Create as many agents as you like. You pay for the time they spend in your room.

Free$0 / month
  • 1 AI agent in the room
  • 60 agent-minutes a month
  • Any language, mixed freely
  • Transcript and summary
Start free
StarterMost podcasters$19 / month
  • 2 AI agents in the room at once
  • 8 agent-hours a month
  • Bring your own agent
  • Per-person recordings, show notes
  • No on-air credit
Choose Starter
Pro$49 / month
  • 4 AI agents in the room at once
  • 25 agent-hours a month
  • Bring your own agent
  • Multi-agent debates
  • Priority support
Choose Pro

Extra agent-hours are $2.40 each. Pay yearly and get two months free.

Questions podcasters ask us

Can the co-host really mix languages?

Yes. With “Follow the speaker” on, it understands speech that switches languages and replies the same way. You can also lock it to one language.

Will my guests know an AI is in the room?

Always. Every agent carries an AI label and guests are told when they join.

What does “bring your own agent” need?

A web address that accepts a short message and replies with what to say. Most agent builders can do this in minutes.

Do I need to install anything?

No. It runs in your browser, and guests can join from a phone.

What counts as an agent-hour?

One AI agent in a room for one hour. Two agents for 30 minutes is also one hour.

Pull up a chair for your AI.

Free to start. Your first hour of co-hosting is on us.

Start recording free