Cara-4 Build Challenge starts in 0d 14h 1m

for the best demo built with Cara-4

Add a Cara-4 avatar to your app and post a demo to enter.
July 14 to 26 · fully online · open to everyone

Give your agent a face. In real time.

Anam turns your AI agent into a photorealistic avatar people can talk to. Cara-4 is our newest model, and it drops into any web app in about five lines of code.

Human realism

Photorealistic faces, natural motion, real micro-expressions.

Real-time

Avatars respond in about 180ms, faster than you blink.

Any character, any style

Photoreal, 3D, anime or comic. The perfect face for your product.

Three steps. No forms.

Sign up at anam.ai, then add a Cara-4 avatar in ~5 lines of code.

Quote-tweet the launch post (below) with a video of your build and a live demo link.

We repost builds along the way. The top one wins $5,000.

👇 The launch post, from @benatanam. Quote-tweet it to enter.

The launch post lands here July 14.

From zero to talking avatar in 5 lines.

For developers who want to build custom experiences

1import { createClient } from "@anam-ai/js-sdk";
2
3const anamClient = createClient(sessionToken, {
4    disableInputAudio: false, // Set true to disable microphone
5    voiceDetection: {
6        endOfSpeechSensitivity: 0.5, // 0-1, higher = more sensitive
7    },
8});
9
10await anamClient.streamToVideoElement("video-element-id");

How the winner is decided.

1

We shortlist

At code freeze, the Anam team picks 5 finalists, judged on three things:

ExecutionCreativityUsefulness
2

You vote

On July 28 we post the 5 finalists on X. Most likes after 48 hours wins.

3

Winner announced

Voting closes 10am PT, Thursday July 30. The best build takes home the $5,000 the same day.

The vote runs on real likes from real people. Obviously inauthentic engagement is disqualified at our discretion. Full T&Cs

Rules & details.

Who can enter

Open worldwide (excluding sanctioned regions). Solo or teams of up to 3; the prize is paid to the entrant who posted the qualifying quote-tweet. Anam employees and contractors can’t enter.

A valid entry

Built during the window (July 14 to 26). An Anam avatar has to be core to the experience, not a garnish. The quote-tweet must include a video of the build working and a link to a live demo judges can try.

Multiple entries

Allowed. One quote-tweet per build.

Ownership

You own everything you build. By entering you give Anam permission to repost and feature your entry.

Dates

Entries close 11:59pm PT Sun July 26 → finalists announced Tue July 28 → vote closes 10am PT Thu July 30 → winner announced same day.

Questions

Read the docs or ask us on X.

Questions, answered.

Do I need to pay for anything?

No. The free tier is enough to build and demo.

Can I use other tools and APIs?

Yes, encouraged. Build with Lovable, Claude Code, Cursor, anything. Just make the Anam avatar central.

Does my demo need to be deployed?

Yes. Include a link judges can open. The video shows it off; the link proves it's real.

I don't have many followers. Can I still win?

Yes. Finalists are picked purely on quality by the Anam team. Only the final 5 go to a public vote, and we amplify all finalists equally.

What video should I post?

30–90 seconds of your build actually working. Screen recording is fine.

Can I enter more than once?

Yes. Each build gets its own quote-tweet.

The small print.

Draft, pending legal review before launch.

  1. Eligibility: open worldwide excluding regions subject to sanctions (list to be confirmed by legal); entrants must be able to lawfully receive the prize. Anam employees and contractors are excluded.
  2. One prize of $5,000 USD.
  3. Entry: a qualifying quote-tweet of the pinned launch post, posted within the entry window (July 14 to 11:59pm PT July 26, 2026), containing a video of the build working and a link to a live demo.
  4. Finalist shortlist is at Anam’s sole discretion.
  5. Vote: the 5 finalist posts are published from @Anam__ai on July 28, 2026; the post with the most likes at 10:00am PT on July 30, 2026 wins.
  6. Anti-manipulation: entries with inauthentic engagement (bots, purchased likes, engagement pods) may be disqualified at Anam’s discretion, with no obligation to disclose evidence. Anam’s decision is final.
  7. Content & features: entrants retain ownership of their builds and grant Anam a non-exclusive right to repost and feature entries.
  8. The winner is responsible for their own taxes.
  9. Anam reserves the right to amend or cancel the challenge at any time.
  10. Privacy: entry data is limited to public X activity; see anam.ai’s privacy policy for how we handle personal data.