The Cheapest AI Avatar APIs in 2026: HeyGen API Pricing vs 18 Real-Time Alternatives

• Face-only APIs, where you bring your own voice agent, have a median price of $0.05 a minute; managed agents have a median of $0.188.
• The lowest per-minute rates (Spatius, Simli, Protoface) come with monthly subscriptions and concurrency caps. They're cheapest when you use what the plan includes.
• At 300 minutes a month, Talking Avatar Realistic Avatars is the cheapest option we found, at $6. At 10,000 minutes, Spatius and Protoface are cheaper, and Talking Avatar Realistic Avatars is third at $200.
• Billing rules change the real price: Tavus charges a 30-second minimum per call, Avatario and Akool bill in 10-second steps, and LemonSlice and bitHuman bill idle time.
• Hedra shut down its real-time avatar on 15 April 2026, and Soul Machines has been in receivership since February 2026.

Every row, with plans, concurrency and billing notes, is in our real-time avatar API pricing table.

HeyGen moved its API for generated videos to pay-as-you-go: no plan and no subscription. You buy credits in dollars, priced by avatar engine and video length, and they expire after 12 months; the API processes 10 videos at a time. Those prices are for rendered videos, not live conversations. HeyGen prices real-time avatars separately through LiveAvatar: 1 credit a minute in LITE mode (your own voice stack) and 2 in FULL, on plans of $99 and $475 a month, which works out to about $0.079–0.095 and $0.158–0.19 a minute.

HeyGen LiveAvatar pricing compared in detail →

With little or uneven usage, monthly plans mostly buy minutes you don't use. Pay as you go wins here: 300 minutes on Talking Avatar Realistic Avatars cost $6, against $10 for Simli's smallest plan, $19 for Spatius's Starter subscription and $99 for LiveAvatar's.

At steady volume, plans with large minute bundles pull ahead: Spatius (on an annual subscription) and Protoface come in under Talking Avatar Realistic Avatars's $200. Those plans cap concurrent sessions (22 on Spatius Growth, 10 on Protoface Launch), while Talking Avatar Realistic Avatars has no subscription and no concurrency tiers, with sessions of up to 3 hours each. Managed agents cost more because they run the whole conversation; add your own speech, LLM and voice costs before comparing them with a face-only API.

• You already run a voice agent: compare face-only APIs only. Managed agents charge for a voice stack you already pay for.
• Usage is small or unpredictable: pay as you go (Talking Avatar Realistic Avatars, Avatario) avoids a subscription and unused plan minutes.
• Usage is steady and high: a plan with a large minute bundle (Spatius, Simli, Protoface) is cheapest per minute; check its concurrency cap.
• Many people talk at once: check concurrency before price. HeyGen LiveAvatar's paid plans don't cap it, and Talking Avatar Realistic Avatars has no concurrency tiers.
• Budget is zero: Talking Avatar Open Source is free for any use (MIT) and lip syncs your own 3D avatar in the browser.

• Mascot Bot vs Talking Avatar
• TalkingHead vs Talking Avatar
• HeyGen LiveAvatar vs Talking Avatar
• Rhubarb Lip Sync vs Talking Avatar
• NVIDIA Audio2Face vs Talking Avatar
• Tavus vs Talking Avatar
• Lemon Slice vs Talking Avatar
• Simli vs Talking Avatar
• UneeQ vs Talking Avatar
• D-ID Agents vs Talking Avatar
• All alternatives lists

Prices come from each vendor's own pricing page, docs or billing API, checked on 7 October 2026. The "lowest self-serve price" is the cheapest per-minute rate available without an Enterprise contract, either a plan's effective rate (plan price ÷ included minutes) or its overage rate. Monthly costs use the cheapest self-serve option for that volume. Beyond Presence prices in euros and UneeQ doesn't publish prices, so neither is charted. We build Talking Avatar, and we've listed where others are cheaper.