Hedra vs Elyumfor Gemini Omni Flash
Hedra lists Gemini Omni Flash in its catalog; Elyum publishes 9 credits per second and charges only when you keep the take.
Gemini Omni Flash is Google's fast, natively multimodal video model. It generates 2 to 10 second clips with sound and spoken dialogue in one pass, and it is built to keep lighting, camera move, and object behavior physically consistent. Practitioners use it for talking shots and action that has to read as weight, not smear. On Elyum the modes are text to video, image to video, reference to video, and video editing, from the Gemini Omni Flash page.
The weights are the same. The checkout is not. Elyum charges 9 credits per second (1 credit = $0.01) only when you KEEP a free preview, about $0.45 for 5s and $0.90 for 10s. Hedra lists Gemini Omni Flash on its all-models catalog as cinematic clips with native audio from a prompt, and it does not publish a Flash per-second studio price. Hedra's pricing page says monthly credits do not roll over. A Trustpilot reviewer wrote that credits were charged for videos with visible artifacts and that refund requests sat unanswered for a long time.
Hedra is the better room if Character-3 talking portraits are the product and Flash is one more model on the same key. Elyum has no timeline editor, stock footage, own avatars, mobile app, team seats, or community feed. If those are the job, stay on Hedra.
Gemini Omni Flash on Hedra
Hedra offers Gemini Omni Flash as a listed video model for cinematic clips with native audio from a prompt. Which plan first unlocks Flash is not published. Hedra does not publish a Gemini Omni Flash credit rate or dollar-per-second studio price. Paid plans start at Basic, $15/mo and 1,500 credits, then Creator $30/mo (5,400) and Professional or Teams $75/mo (14,400). Monthly subscription credits expire at cycle end. Add-on packs are reported to persist month to month (third-party review, not confirmed on Hedra's own copy).
A bad Flash take on Hedra is not a documented automatic refund. Hedra has a Generation History & Credit Refunds page; exact terms were not independently confirmed. Third-party reviews report charges for artifacted output and slow refunds. Free tier is 100 one-time credits, reported watermarked and not commercially licensed. Paid plans list commercial use; watermark on paid is false. API v3 and an MCP server let Flash sit beside Character-3. Our Hedra alternative page covers the catalog without this model's missing price.
Gemini Omni Flash on Elyum
On Elyum, Gemini Omni Flash is 9 credits per second. A 5s keep is 45 credits ($0.45). A 10s keep is 90 credits ($0.90). Clips run 2 to 10 seconds with native audio, as text to video, image to video, reference to video, or video editing, in two aspect ratios. Every render comes back as a free preview. Credits move only when you KEEP. Kill refunds the rest automatically. A failed generation is never charged. Elyum pricing uses 1 credit = $0.01. Free is up to 150 credits once (our algorithm may grant them), no card. Plus is $9/mo, Pro $29/mo, Ultra $69/mo.
Kept takes download clean and full quality, with no watermark, and commercial use included. Free-plan kills are metered (one kill a month); paid plans kill freely. You can run Flash from Claude, ChatGPT, or Cursor via Elyum's MCP docs and the REST API. Same credit balance as the Seedance 2.5 catalog entry. See also Hedra vs Elyum for Wan 3 if you are splitting a month across models.
What a Gemini Omni Flash take costs
| Scenario | Hedra | Elyum |
|---|---|---|
| One 5s take you keep | Not published; Hedra lists Flash, no per-second studio price | 5 × 9 credits/s = 45 credits ($0.45) |
| One 10s take you keep | Not published | 10 × 9 credits/s = 90 credits ($0.90) |
| Ten 5s takes, keep two | Not published; no confirmed auto-refund for discarded takes | 2 × 45 credits = 90 credits ($0.90); eight kills refunded |
| A failed generation | Not independently confirmed; reviewers report artifact charges | $0; failed generations are never charged |
| Monthly plan needed to access the model | Unlock plan not published; paid plans from $15/mo (Basic, 1,500 credits) | None required; Free is up to 150 credits once (our algorithm may grant them), no card |
| Watermark on the file | Free reported watermarked; paid watermark false | No watermark on kept takes |
Elyum: 1 credit = $0.01, charged only when you keep a take. Hedra figures from its own pricing pages and independent reviews, verified 2026-09-07; sources at the end. Full rate card on the Gemini Omni Flash page.
Where the two differ
Elyum bills 9 credits per second only on KEEP (1 credit = $0.01). Hedra does not publish a Gemini Omni Flash per-second studio rate. Other Hedra API models are priced in cents per second. Hedra monthly credits expire; they do not roll over.
Elyum KILL is a full automatic refund; failed gens are never charged. Hedra has a Generation History & Credit Refunds page whose exact terms were not confirmed. A Trustpilot reviewer wrote that artifacted video still cost credits and refunds sat unanswered.
Elyum Flash clips are 2 to 10 seconds, two aspect ratios. Hedra does not publish Flash-specific duration or resolution on the listing. Other Hedra caps vary (Veo 3.1 up to 8s; Seedance 2.5 and Wan 3.0 up to 30s; max resolution varies by model).
Both offer a public API and an MCP server. Hedra API v3 is typed async jobs, pay-per-use, separate from subscription credits. Elyum MCP and REST debit the same studio balance as the web app.
Elyum kept takes have no watermark and include commercial use. Hedra paid plans (Basic, Creator, Professional, Teams, Enterprise) list commercial use; watermark on paid is false. Free-tier Hedra output is reported watermarked and not commercially licensed.
Hedra's Character-3 avatar model is a real reason to stay. Elyum has no avatars, timeline, stock, or team seats. Same Flash, different rooms. Related: Hedra vs Elyum for Seedance 2.5.
Pick Hedra when
- Character-3 lip-sync and micro-expressions live in the same studio as Gemini Omni Flash.
- One API v3 key and MCP server across a large catalog (roughly 46 video models), including Flash.
- Usable free tier (100 credits) to test before a paid plan; paid plans include commercial use.
- Granular published API prices for many other models, useful if Flash is not the only job.
Pick Elyum when
- 9 credits per second: about $0.45 per 5s keep, $0.90 per 10s, already about 20% under comparable platforms.
- Free preview; credits move only on KEEP. Kill refunds automatically. Failed gens are $0.
- Free plan is up to 150 credits (our algorithm may grant them), no card. Plus is $9/mo versus Hedra Basic at $15/mo.
- Four Flash modes (text, image, reference, edit) on one balance; kept files have no watermark.
Gemini Omni Flash in three styles, rendered on Elyum
Getting the most out of Gemini Omni Flash
- Put the spoken line in quotes and name the speaker. Flash generates dialogue with the picture. A mute prompt plus a later voice track fights the native audio.
- Specify one camera move and one light. Flash is built to keep lighting and object behavior consistent. Two competing dollies or mixed day-night cues smear the physics.
- For image-to-video, describe only the motion you want from the still. Do not restage clothes or background already in the frame.
- Stay inside 2 to 10 seconds. A 5s talking beat with one action lands cleaner than a 10s prompt that asks for three location changes.
- Name the aspect ratio in the first line. Flash ships two on Elyum. Talking close-ups usually want the taller frame; wide physical action wants the wider one.
- Ask for weight and contact: feet on the floor, a shadow that sticks to the object, what the hand hits. Avoid float, morph, and collage language unless that is the shot.
Frequently asked questions
How much does a Gemini Omni Flash video cost on Elyum vs Hedra?
Is Gemini Omni Flash the same model on both?
What happens to a bad Gemini Omni Flash take?
Do I need a subscription to use Gemini Omni Flash on Elyum?
Does Hedra watermark Gemini Omni Flash output?
Can I call Gemini Omni Flash from an API or MCP on both?
- Hedra Pricing (accessed 2026-09-07)
- Hedra All Models catalog (accessed 2026-09-07)
- Hedra Video Generation API (accessed 2026-09-07)
- Hedra Veo model page (accessed 2026-09-07)
- Hedra Nano Banana model page (accessed 2026-09-07)
- Hedra Grok Imagine model page (accessed 2026-09-07)
- Hedra Best AI Video Models blog (accessed 2026-09-07)
- Hedra Reviews - Trustpilot (accessed 2026-09-07)
- Hedra AI Review 2026: Pricing, Character-3, and Is It Still Worth It? (fluxnote.io) (accessed 2026-09-07)
- Hedra AI Review 2026: What Holds It Back (lovart.ai, June 2026) (accessed 2026-09-07)
- Hedra Generation History & Credit Refunds docs (accessed 2026-09-07)
Related comparisons
Create everything. Keep the best.
Gemini Omni Flash is a AI video generator you can preview free on Elyum. Keep the takes you love, kill the rest for a full refund.