Hailuo H3 vs Veo 3.1 Fast: which costs less per second of video with audio
veo 3.1 fast vs hailuo h3 price comparison
Veo 3.1 Fast is cheaper on both axes. It bills 1,500 credits for an 8-second clip with audio. Hailuo H3 bills 3,375 credits for 5 seconds at 768p with audio. That is 2.25x more per generation and 3.6x more per second of finished video: 675 credits per second versus 187.5. If you pick H3, pick it for reasons other than price.
How this works
The two prices, side by side
Both models list audio as included in the package, so the sound is part of the quoted price on each. What differs is the credit total and the clip length you get for it. Veo 3.1 Fast: 1,500 credits, 8 seconds, audio included. Divide and you get 187.5 credits per second. Hailuo H3: 3,375 credits, 5 seconds, 768p, audio included. Divide and you get 675 credits per second. The per-generation gap (2.25x) understates the real gap, because the cheaper model also hands you the longer clip. Per second of usable footage the multiple widens to 3.6x. If you are producing a fixed number of seconds rather than a fixed number of clips, that 3.6x is the number to budget against. Nothing here is a quality judgment: these are the billed amounts per generation.
Why per-second is the number that matters
Say you need eight seconds of covered action. Veo 3.1 Fast delivers it in one generation for 1,500 credits. Hailuo H3 is listed at 5 seconds per generation, so you need two: 6,750 credits for 10 seconds, of which you use 8 and throw away 2. Same shot, 4.5x the spend, plus a cut you did not plan for and a continuity problem across the join. This is the practical reason clip length belongs in a price comparison. A per-generation price alone makes a 5-second model look competitive against an 8-second one. It is not. Any time your edit is measured in seconds rather than in clips, multiply the per-generation price by the number of generations you actually need to cover the timeline, then compare.
What a credit pack actually buys
Credits are sold in three packs: 30,000 for $19.99, 100,000 for $39.99 and 300,000 for $99.99 — roughly $0.67, $0.40 and $0.33 per 1,000 credits. One Veo 3.1 Fast generation costs $1.00 on the 30,000 pack, $0.60 on the 100,000 pack and $0.50 on the 300,000 pack. One Hailuo H3 generation costs $2.25, $1.35 and $1.12 on the same three packs. Per second of finished video, at the 100,000 pack that is $0.075 for Veo 3.1 Fast against $0.27 for Hailuo H3. On the 30,000 pack it is $0.125 against $0.45; on the 300,000 pack, about $0.063 against $0.224. In whole generations: the 30,000 pack yields 20 Veo 3.1 Fast clips (160 seconds) or 8 Hailuo H3 clips (40 seconds). The 100,000 pack yields 66 Veo clips (528 seconds) or 29 H3 clips (145 seconds). The 300,000 pack yields 200 Veo clips (1,600 seconds) or 88 H3 clips (440 seconds). That is what an end user of Doitong without an API key pays. It is not a vendor API rate, and the two should not be read as the same kind of number.
The numbers, in full
| Model | Credits / generation | Length | Audio | Credits / second | $ on 30,000 pack | $ on 100,000 pack | $ on 300,000 pack |
|---|---|---|---|---|---|---|---|
| Veo 3.1 Fast | 1,500 | 8 s | included | 187.5 | $1.00 | $0.60 | $0.50 |
| Veo 3.1 Pro | 2,000 | 8 s | included | 250 | $1.33 | $0.80 | $0.67 |
| Hailuo H3 | 3,375 | 5 s (768p) | included | 675 | $2.25 | $1.35 | $1.12 |
| Kling v2.6 | 3,500 | 5 s | included | 700 | $2.33 | $1.40 | $1.17 |
| Seedance 2 Fast | 6,200 | 5 s (720p) | included | 1,240 | $4.13 | $2.48 | $2.07 |
| Seedance 2.0 | 7,750 | 5 s (720p) | included | 1,550 | $5.16 | $3.10 | $2.58 |
| Hailuo 2.3 (different model) | 1,400 | 6 s (768p) | not listed | 233.3 | — | — | — |
Credit packs: 30,000 for $19.99, 100,000 for $39.99, 300,000 for $99.99. Prices above are per generation at each pack rate.
The detail
Hailuo H3 is not Hailuo 2.3 — do not price one from the other
Two separate Hailuo entries exist in the price list and they are easy to conflate. Hailuo 2.3: 1,400 credits, 6 seconds, 768p. Audio is not listed as included. Hailuo H3: 3,375 credits, 5 seconds, 768p, audio included. So the cheaper Hailuo is not a discounted H3. It is a different position that costs less than half as much, runs one second longer, and does not list audio as included. If the price you have in mind is 1,400, it refers to 2.3, not H3 — and an H3 generation is priced at 3,375 credits regardless of what you budgeted. Check which of the two you picked before assuming a billing error.
Veo 3.1 Pro also undercuts Hailuo H3
The comparison gets more lopsided if you widen it. Veo 3.1 Pro costs 2,000 credits for 8 seconds with audio, which is 250 credits per second. That is 1,375 credits less per generation than Hailuo H3 and still well under half its per-second rate, while giving three more seconds per clip. In dollars on the 100,000 pack: $0.80 against $1.35. The models whose price line includes audio in the package are Veo 3.1 Fast, Veo 3.1 Pro, Kling v2.6, Hailuo H3, Seedance 2 Fast and Seedance 2.0. Ranked by credits per second, those six come out: Veo 3.1 Fast 187.5, Veo 3.1 Pro 250, Hailuo H3 675, Kling v2.6 700, Seedance 2 Fast 1,240, Seedance 2.0 1,550. Hailuo H3 sits third of the six — cheaper per second than Kling v2.6 and far cheaper than either Seedance 2 tier, but 3.6x the rate of Veo 3.1 Fast, the lowest of the six. If your only constraint is budget, the decision is already made two rows above H3. One more thing worth knowing before you read a price off a list: Seedance 1.5 and Kling V3 carry separate "audio off" and "+ audio" entries, and the silent variant costs close to half. Make sure the number you are comparing is the one that includes sound.
What this page deliberately does not tell you
This is a cost comparison and nothing more. It makes no claim about motion quality, prompt adherence, face consistency, camera control or how the generated audio sounds on either model. Those are the reasons someone would rationally pay 3.6x, and we are not in a position to quantify them here. One resolution note, since it comes up: Hailuo H3 is listed at 768p. For Veo 3.1 Fast no resolution figure is quoted in the price list, so treat it as unspecified rather than assuming 1080p. The honest way to use these numbers: settle on the model whose output you actually want by running one generation of each on the same prompt, then use the per-second table to size your credit pack. Deciding by price alone gets you Veo 3.1 Fast every time, which may or may not be the shot you needed.
Questions people ask next
Which is cheaper, Veo 3.1 Fast or Hailuo H3?
Veo 3.1 Fast, by a wide margin on both measures. A Veo 3.1 Fast generation costs 1,500 credits and returns 8 seconds with audio. A Hailuo H3 generation costs 3,375 credits and returns 5 seconds at 768p with audio. Per generation that is 2.25x; per second of finished footage it is 3.6x, because the cheaper model is also the longer one.
How many credits does Hailuo H3 cost per generation?
3,375 credits for one 5-second clip at 768p with audio included. In dollars that is $2.25 if you bought the 30,000-credit pack at $19.99, $1.35 on the 100,000-credit pack at $39.99, or $1.12 on the 300,000-credit pack at $99.99. Each generation is priced at the same 3,375 credits.
Is Hailuo H3 the same model as Hailuo 2.3?
No — they are two separate entries in the price list. Hailuo 2.3 costs 1,400 credits for 6 seconds at 768p, and audio is not listed as included. Hailuo H3 costs 3,375 credits for 5 seconds at 768p with audio included. If the price you have in mind is 1,400, it refers to 2.3, not H3.
Why does my video have no sound?
Check which variant you selected. Seedance 1.5 and Kling V3 carry separate "audio off" and "+ audio" entries, and the silent version costs close to half. The models priced on a single line with audio in the package are Veo 3.1 Fast, Veo 3.1 Pro, Kling v2.6, Hailuo H3, Seedance 2 Fast and Seedance 2.0. Hailuo 2.3 does not list audio as included.
Why does my clip cut off at 5 seconds?
Clip length is fixed per model in the price list. Hailuo H3, Kling v2.6, Seedance 2 Fast and Seedance 2.0 are listed at 5 seconds. Veo 3.1 Fast and Veo 3.1 Pro are listed at 8. Hailuo 2.3 is listed at 6. Grok Video is billed by the second instead. The listed length is what each model returns, so covering a longer scene means moving to a longer model or generating and joining several clips.
What is the cheapest model with audio?
Six models on Doitong are priced with audio included: Veo 3.1 Fast, Veo 3.1 Pro, Kling v2.6, Hailuo H3, Seedance 2 Fast and Seedance 2.0. Of those six, Veo 3.1 Fast has the lowest rate both ways — 1,500 credits per generation and 187.5 credits per second. Veo 3.1 Pro is second at 2,000 credits and 250 per second; Hailuo H3 is third at 675 per second.
Is Hailuo H3 higher quality than Veo 3.1 Fast?
These are billing facts — credits, seconds, whether audio is in the package — not quality measurements. No claim is made here about motion, prompt adherence, character consistency or how the generated audio sounds on either model. The practical approach is to run the same prompt on both once, decide from the two outputs, and use the per-second numbers only to size your credit pack.
Does resolution change what I pay on these two models?
Each of these two carries a single price line: Hailuo H3 at 3,375 credits for 5 seconds at 768p, and Veo 3.1 Fast at 1,500 credits for 8 seconds with audio, with no resolution figure quoted. Where resolution does move the rate is Grok Video, which is billed at 350 credits per second at 480p and 450 credits per second at 720p.
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