HeyGenVideoReleased 24 August 2026
Avatar IV pricing, context and benchmark
HeyGen: Avatar IV is an image-to-video model that animates a single photo into an expressive, lip-synced talking-head video.
n/a
Input context
n/a
Output context
$0.05
Per second
1
Providers
n/a
AA index
01 · Model Overview
Everything that matters, in one table
Context, pricing, cache, modalities and tooling, from the model registry and Artificial Analysis.
| Model | Avatar IV |
| Model ID | heygen/avatar-iv |
| Provider | HeyGen |
| Release date | 24 August 2026 |
| Status | Generally available |
| Input context | Provider default |
| Output context | Provider default |
| Official input pricing | Free per 1M tokens |
| Official output pricing | Free per 1M tokens |
| Cache read pricing | Not published |
| Market input pricing | Free per 1M (cheapest route) |
| Market output pricing | Free per 1M (cheapest route) |
| Input modalities | text · image · audio |
| Output modalities | video |
| Reasoning control | Not exposed |
| Tool support | Text generation only |
| Tokenizer | Other |
| Provider routes | 1 endpoint |
| Artificial Analysis index | Not published |
| Speed | Not published |
| Knowledge cutoff | Not publicly stated |
Input and output support
| Modality | Input | Output | Billed at |
|---|---|---|---|
| Text | ✓ yes | no | Free in |
| Image | ✓ yes | no | Free in |
| Audio | ✓ yes | no | Free in |
| Video | no | ✓ yes | not supported |
| File (PDF) | no | no | not supported |
02 · Overview
What is Avatar IV?
HeyGen: Avatar IV is an image-to-video model that animates a single photo into an expressive, lip-synced talking-head video.
Rather than only matching mouth shapes to words, it interprets the vocal...
Avatar IV carries a n/a token window, uses the Other tokenizer and is served by HeyGen. On Hoodgen it sits in the Video tier of the model menu next to its siblings, so you can switch mid conversation without losing the thread.
03 · Release
Release and what changed from the previous version
Released24 August 2026
| Property | FLUX Video Upscale | Avatar IV | Change |
|---|---|---|---|
| Released | Aug 2026 | Aug 2026 | Same release window |
| Context | n/a | n/a | Unchanged |
| Max output | n/a | n/a | Unchanged |
| Input price | Free | Free | Unchanged |
| Output price | Free | Free | Unchanged |
| Input modalities | text, video | text, image, audio | Unchanged |
| AA index | n/a | n/a | Newer benchmark run |
04 · Capabilities
Features and capabilities
◉
Vision
Screenshots, charts and photographed documents are read at the text token rate.
♪
Audio and video
Calls, meetings and screen recordings can be summarised in one pass.
07 · Use cases
What can you do with Avatar IV?
Everyday writing
Drafts, rewrites, summaries and replies.
Research
Source material condensed with the key numbers kept.
Chat
General questions where latency and cost both matter.
Tooling inside Hoodgen
Writer, Humanizer, Coding and the rest of the tool suite.
09 · Pricing
Avatar IV pricing
Official pricing
Per second
$0.05 / second
- Video Output: $0.05 per second
- video output from text, image, audio input
Cheapest route
Free / 1M in
Free / 1M out
- 1 route on OpenRouter
- What Hoodgen routes to first
- Same model, lower bill
Market pricing, every route
| Provider | Tier | Input | Output | Cache read | Uptime 24h |
|---|---|---|---|---|---|
| HeyGen | standard | n/a | n/a | n/a | n/a |
API pricing and cost calculator
| Rate | Per call | Total | Credits |
|---|---|---|---|
| Cheapest route | $0.0000 | $0.00 | 1 |
| List price | $0.0000 | $0.00 | 1 |
10 · Developers
API and developer information
| Model ID | heygen/avatar-iv |
| Endpoint | https://openrouter.ai/api/v1/chat/completions |
| Parameters | prompt and max_tokens |
| Streaming | Yes, server sent events |
| Modality string | text+image+audio->video |
| Max prompt tokens | provider default |
| Max completion tokens | provider default |
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "heygen/avatar-iv",
"messages": [{ "role": "user", "content": "Summarise this document." }],
"max_tokens": 1024
}'11 · Limitations
Model limitations
| Output cap | Provider default tokens per request. Long deliverables have to be chunked. |
| Benchmarks not published | Artificial Analysis does not publish an Intelligence Index for this release, so no benchmark score is claimed here. |
| Knowledge cutoff | The provider does not state a fixed cutoff for every release. Verify very recent events against search. |
12 · Comparison
Avatar IV vs other HeyGen models
| Model | Context | Input /1M | Output /1M | AA index | Released |
|---|---|---|---|---|---|
| Avatar IV | n/a | Free | Free | n/a | Aug 2026 |
| Wan 2.7 | n/a | Free | Free | n/a | Apr 2026 |
| FLUX 3 Video | n/a | Free | Free | n/a | Aug 2026 |
| FLUX Video Edit | n/a | Free | Free | n/a | Sept 2026 |
| FLUX Video Upscale | n/a | Free | Free | n/a | Aug 2026 |
| Seedance 2.0 | n/a | Free | Free | n/a | Apr 2026 |
13 · Privacy
Privacy and data policy
- On Hoodgen, prompts and attachments answer that request and stay in your conversation history so you can reopen it. They are not used to train models.
- Requests route through OpenRouter to HeyGen and are covered by that provider's API terms.
- Do not paste secrets or personal data you would not send to any hosted model.
14 · FAQ
Avatar IV questions, answered
Avatar IV is a video model from HeyGen, released 24 August 2026. HeyGen: Avatar IV is an image-to-video model that animates a single photo into an expressive, lip-synced talking-head video.
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Start chatting with Avatar IV
Free to try on Hoodgen AI, with a live credit estimate before every send. No API key, no setup.