Create AI Character Options for Live Video Calls (2026)

To create or interact with an AI character in 2026, you either build a custom persona from scratch using prompt fields and reference images, or select pre-built original characters optimized for live video calls. Custom-creation platforms like Kindroid let you supply backstories and driving photos, while companion apps like Prelulu focus on ready-made characters powered by real-time avatar animation and full-duplex voice.

Custom persona creation versus pre-built live companion apps

When deciding how to create or engage with an AI character in 2026, users encounter two distinct architectures: custom persona builders and pre-built companion applications. Custom builders require you to manually write backstories, calibrate tone parameters, and upload source images before starting a conversation. In contrast, pre-built companion platforms deliver ready-made characters with established voices, motion behaviors, and narrative identities designed specifically for live interaction.

Prelulu operates on the pre-built companion model. Prelulu makes Prelulu, pairing an in-house catalog of original roleplay characters with its proprietary realtimeavatar.ai architecture rather than offering an empty prompt box to configure custom bots. For users whose primary goal is building custom bots from the ground up, dedicated creation platforms like Kindroid or Character.AI provide modular prompt inputs. For users who prefer skipping prompt drafting to start an immediate ai video chat, Prelulu provides instant live video calls.

Comparison of AI character creation and interaction platforms

The table below outlines documented capabilities, supported calling modes, camera features, and subscription costs across six major platforms as of September 2026. Transparent disclosure: Prelulu publishes this guide and develops the Prelulu platform.

Curated shortlist of AI character platforms for calls and chat

• 1. Prelulu — Ready-to-call live avatars powered by realtimeavatar.aiPrelulu is an AI companion application centered on live, lip-synced video and voice calls with original characters. Instead of requiring users to manually tune system instructions, Prelulu provides pre-built roleplay companions with full-duplex voice capabilities, allowing callers to interrupt naturally. Live calls use credits, and body movements rely on prepared motion clips rather than unscripted physical simulation. The brand line is Prelulu — where delulu begins.
• 2. Kindroid — Comprehensive custom character creation and avatar videoKindroid provides deep custom persona creation, enabling users to enter detailed backstories, behavioral directives, and an avatar photo or optional Driving Image. According to primary documentation on kindroid.ai/v2/docs/voice-calls-and-video-calls (checked 2026-09-19), subscribers can launch Live Avatar Video with real-time lip-sync and gestures. Standard Live Video consumes 2,000 audio credits per minute, while Premium Live Video costs 4,000 audio credits per minute for higher visual resolution.
• 3. Character.AI — Large-scale community dialogue and voice interactionCharacter.AI specializes in user-created dialogue bots where creators define greetings, character backstories, and sample conversations. Subscribers to c.ai+ at $9.99 per month receive unlimited voice calls and ad-free messaging according to character.ai/subscribe (checked 2026-09-01). While Character.AI announced research into audio-driven video on July 3, 2025, that announcement noted it was not a product launch, and consumer live avatar calling remains unverified in the product.
• 4. Replika — Companion with real-time video camera recognitionReplika centers on an individual 3D companion model. As verified on help.replika.com (checked 2026-09-19), real-time video recognition is gated strictly to the top Platinum tier, allowing the AI to observe surroundings via the user's camera feed. This camera-input capability is distinct from generating avatar video calls. Current subscription prices are displayed directly in the app and store, with feature access depending on the active tier.
• 5. Nomi.ai — Structured companion setup with multi-tier subscription plansNomi.ai allows users to create companion profiles and converse across dynamic text and audio scenarios. According to its US App Store listing for v1.12.1 (checked 2026-09-01), in-app purchases include the Standard Plan at $15.99 per month, a Quarterly Plan at $39.99, a Yearly Plan at $99.99, and a Launch Plan at $9.99 monthly. Real-time avatar video calling is not documented in the verified sources.
• 6. Talkie — Community-driven character generation with card discoveryTalkie (listed as Talkie: Creative AI Community on Google Play, checked 2026-09-01) is free to install, containing ads and in-app purchases. It serves users interested in browsing or publishing stylized character concepts with voice lines. It does not provide real-time lip-synced video calling within the verified documentation.

Crafting backstories for custom conversational personas

For creators using customizable platforms like Kindroid or Character.AI, drafting an effective persona prompt requires accounting for spoken audio dynamics. Spoken responses demand concise phrasing, as models that output sprawling paragraphs of narrative description sound unnatural during phone or video sessions.

• Establish the behavioral baseline: Define whether the character communicates like an aloof academic, a playful childhood friend, or a guarded ally to anchor immediate conversational tone.
• Enforce spoken dialogue constraints: Direct the model to generate spoken sentences without quotation marks, internal monologues, or asterisk-wrapped stage directions.
• Calibrate response lengths: Instruct the persona to limit its replies to two or three sentences at a time, leaving space for natural turn-taking during audio exchanges.
• Separate visual appearance from system prompts: Keep visual rendering details in the character image or driving-image prompt, using system text exclusively for personality, vocabulary, and memory rules.

How live avatar video pipelines process visual character feeds

A standard character creation pipeline outputs static 2D imagery, whereas a live avatar pipeline synthesizes conversational movement continuously. In platforms offering live video, speech audio drives the avatar's lip-sync and facial expressions in real time, matching phonetic output to visual mouth shapes.

On Kindroid, live avatar animation begins with a user-supplied reference portrait or Driving Image, which is animated during calls using audio credits (checked 2026-09-19). On Prelulu, characters are powered by the realtimeavatar.ai architecture, combining dynamic mouth synchronization with prepared motion clips to sustain visual presence throughout a video call with an AI character.

Managing credits, memory limits, and daily calling costs

Generating live avatar video frames and synthetic audio streams requires substantial server GPU resources, making real-time calls subject to credit consumption or subscription gates across the market. Prelulu provides a limited daily text allowance on its free tier, while live video and voice calls consume call credits, with current package rates documented on the pricing page.

For Kindroid users, accessing Live Avatar Video requires standard subscriptions ($13.99 for one month direct on the web, checked 2026-09-02) plus audio credits: Standard Live Video costs 2,000 audio credits per minute, while Premium Live Video costs 4,000 audio credits per minute (checked 2026-09-19). Character.AI includes unlimited voice calling in its c.ai+ plan for $9.99 per month (checked 2026-09-01), but does not provide consumer live avatar video.

Memory capabilities also differ by architecture. In Prelulu, saved relationship details and recent chat context carry forward into live calls, though the system does not maintain a complete, unbroken transcript of every past word spoken. Reviewing memory settings and credit balances beforehand ensures smooth character interactions.