What 10, 40, and 60 seconds of AI video with sound actually cost
cost of 10 seconds ai video with sound stitching clips
Prices are per whole generation, so 10 seconds means two generations either way: two 8-second Veo clips give 16 seconds to trim from, two 5-second clips give 10. With sound in the listed price, Veo-3.1 Fast is 2 x 1,500 = 3,000 credits, $1.20 on the 100,000-credit pack; Hailuo H3 is 6,750, $2.70. Over 40 seconds: Veo-3.1 Fast 7,500 credits ($3.00), Kling v2.6 28,000 ($11.20), Seedance 2.0 62,000 ($24.79).
How this works
How the price list is built: one price per generation, one listed clip length
In the Doitong price list every video model carries a credit price for a single generation, together with the clip length that price covers. Grok Video is listed by the second: 350 credits per second at 480p and 450 at 720p. Divide price by listed length and you get the number that matters once you are assembling something longer than one clip. Veo-3.1 Fast is 1,500 credits for 8 seconds with sound, which is 187.5 credits per finished second. Veo-3.1 Pro is 2,000 for 8 seconds, or 250 per second. On the 5-second side: Hailuo H3 is 3,375, so 675 per second; Kling v2.6 is 3,500, so 700; Seedance 2 Fast is 6,200, so 1,240; Seedance 2.0 is 7,750, so 1,550. In dollars on the 100,000-credit pack, that is $0.075 per finished second on Veo-3.1 Fast, $0.10 on Veo-3.1 Pro, $0.28 on Kling v2.6 and $0.62 on Seedance 2.0. Among the models that list sound as included, the two 8-second Veo tiers are also the lowest per finished second. That does not generalise across the whole list: Sora-2 Pro is 751 credits for 5 seconds, which is 150.2 credits per finished second, lower than either Veo tier. Read the ladder you are actually buying from. Prices are listed per whole generation. If you need 10 seconds from an 8-second model, you buy two generations, get 16 seconds of material, and trim 6 seconds away.
The 40-second comparison
Forty seconds is the honest length to compare on, because both 5 and 8 divide it exactly. Neither clip length gets penalised for leftover footage, so the credit totals are directly comparable. At 8 seconds per generation you need 5 generations. At 5 seconds you need 8. That ratio is the whole story: the 8-second model does the same job with 3 fewer paid generations, 37.5 percent fewer, before per-generation prices enter the picture. Then the prices compound it, because among the models with sound in the listed price the two 8-second tiers are also the two cheapest per generation. The result is a spread of 54,500 credits between the cheapest and most expensive route to the same 40 seconds. On the 100,000-credit pack that gap is $21.79: $3.00 against $24.79. The table below has the full breakdown, including how many seams each route leaves you with.
Fewer generations also means fewer seams
The cost argument has a production twin. Forty seconds built from 8-second clips is 5 clips and therefore 4 seams. The same 40 seconds built from 5-second clips is 8 clips and 7 seams. A seam is simply a cut between two separately generated clips, and as an editing consideration it is where continuity has to be re-established: lighting, wardrobe, camera movement, the audio bed. If a seam does not hold, the fix is another generation, and a generation is priced the same whether it is your first attempt or your fourth. So plan the budget in whole generations, not in seconds. Budget one retake per seam and the arithmetic shifts. The 5-second route pays for 7 extra generations against 4 on the 8-second route. On Veo-3.1 Fast that is 4 x 1,500 = 6,000 credits of repair work ($2.40 on the 100,000-credit pack), taking the total from 7,500 to 13,500 credits ($5.40). On Kling v2.6 it is 7 x 3,500 = 24,500 credits ($9.80), taking the total from 28,000 to 52,500 credits ($20.99).
The numbers, in full
| Model | Listed clip length | Generations for 40 s | Credits each | Total credits | Credits per finished second | Total on the 100,000-credit pack | Seams |
|---|---|---|---|---|---|---|---|
| Veo-3.1 Fast | 8 s, sound included | 5 | 1,500 | 7,500 | 187.5 | $3.00 | 4 |
| Veo-3.1 Pro | 8 s, sound included | 5 | 2,000 | 10,000 | 250 | $4.00 | 4 |
| Hailuo H3 | 5 s, 768p, sound included | 8 | 3,375 | 27,000 | 675 | $10.80 | 7 |
| Kling v2.6 | 5 s, sound included | 8 | 3,500 | 28,000 | 700 | $11.20 | 7 |
| Seedance 2 Fast | 5 s, 720p, sound included | 8 | 6,200 | 49,600 | 1,240 | $19.84 | 7 |
| Seedance 2.0 | 5 s, 720p, sound included | 8 | 7,750 | 62,000 | 1,550 | $24.79 | 7 |
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
Where the sound actually comes from
Six models carry sound inside the listed price: Veo-3.1 Fast, Veo-3.1 Pro, Kling v2.6, Hailuo H3, Seedance 2 Fast and Seedance 2.0. Those are the six in the table below, and their prices are single-line prices with the audio already in them. Audio is not attached to a model name across the board. Seedance 1.5 and Kling V3 are each priced as two separate variants, one with audio off and one with audio on, and the audio-off variant costs close to half of the audio-on one. If a finished clip came back silent, check which of the two variants produced it before rewriting the prompt. Clip length varies the same way. Veo-3.1 is listed at 8 seconds, Hailuo 2.3 at 6, 12 of the 17 listed models at 5, and Grok Video is counted per second. A timeline that ends at 5 seconds reflects the listed clip length of the model you picked.
Constraints that override the budget
Two entries in the price list can decide the model for you before cost is discussed. Seedance 2 in all three variants, Mini, Fast and 2.0, is marked no video input. You cannot hand it an existing clip to continue or extend, so any stitching workflow built on feeding the previous clip back in has to be planned around a different model. Seedance 2 is also listed as 16:9. If your deliverable is vertical 9:16 short-form, Seedance 2 is not the entry to pick, and you should confirm the aspect ratio support of whichever model you consider in its place. Check the aspect ratio and the input requirements of your edit first, then apply the credit math to whatever is still on the list.
Turning credits into dollars
Credits come in three packs: 30,000 for $19.99, 100,000 for $39.99, and 300,000 for $99.99, which works out to roughly $0.67, $0.40 and $0.33 per 1,000 credits. The pack you buy does not change which model is cheapest, because every price is converted at the same per-credit rate. It only changes the absolute number. Forty seconds on Veo-3.1 Fast is 7,500 credits: $5.00 on the smallest pack, $3.00 on the middle one, $2.50 on the largest. The same 40 seconds on Seedance 2.0 is 62,000 credits: $41.31, $24.79 and $20.66. Every dollar figure on this page uses the 100,000-credit pack unless another pack is named, so the money column is comparable row to row. For the smallest pack multiply by about 1.67; for the largest, by about 0.83. On totals in the tens of thousands of credits, work from the pack price rather than the rounded per-1,000 rate, because the rounding drifts by a few cents.
Questions people ask next
What does 10 seconds of AI video with sound cost?
Prices are per whole generation, so on a model with a fixed clip length 10 seconds means two generations. Veo-3.1 Fast: 2 x 1,500 = 3,000 credits, $1.20 on the 100,000-credit pack, and you end up with 16 seconds of material to trim from. Hailuo H3: 2 x 3,375 = 6,750, $2.70. Kling v2.6: 2 x 3,500 = 7,000, $2.80. Seedance 2.0: 2 x 7,750 = 15,500, $6.20. Grok Video is listed by the second: 350 credits per second at 480p and 450 at 720p.
What does one minute of finished footage with sound cost?
Sixty seconds needs 8 generations at 8 seconds each, or 12 at 5 seconds each. Veo-3.1 Fast: 12,000 credits, $4.80. Veo-3.1 Pro: 16,000 credits, $6.40. Hailuo H3: 40,500 credits, $16.20. Kling v2.6: 42,000 credits, $16.80. Seedance 2 Fast: 74,400 credits, $29.75. Seedance 2.0: 93,000 credits, $37.19. Dollar figures are for the 100,000-credit pack at $39.99.
Why does my generated video have no sound?
Check which variant produced it. Seedance 1.5 and Kling V3 are each listed as two separate options, one with audio off and one with audio on, and the audio-off option costs close to half as much. Sound is included in the listed price on Veo-3.1 Fast, Veo-3.1 Pro, Kling v2.6, Hailuo H3, Seedance 2 Fast and Seedance 2.0.
Why does my clip stop at 5 seconds?
Because that is the clip length the model's price covers. Veo-3.1 is listed at 8 seconds, Hailuo 2.3 at 6 seconds, and 12 of the 17 listed models at 5. Grok Video is counted per second, 350 credits per second at 480p and 450 at 720p. For longer output, either move to a model with a longer listed clip or plan the edit as several generations.
Can I upload a video to Seedance 2 and extend it?
No. All three Seedance 2 variants, Mini, Fast and 2.0, are marked no video input, so a continuation workflow that feeds the previous clip back in will not run on them. Seedance 2 is also listed as 16:9, which makes it the wrong pick for vertical 9:16 delivery. Choose a different model before planning a stitched sequence around it.
Is Seedance 2.0 worth the difference over Veo-3.1 Fast?
On cost the gap is easy to state: 40 seconds with sound is 62,000 credits on Seedance 2.0 against 7,500 on Veo-3.1 Fast, a difference of 54,500 credits, or $21.79 on the 100,000-credit pack. That is 1,550 credits per finished second against 187.5. Whether the output justifies it is a judgement about your footage, not something this page measures.
Does buying a bigger credit pack change which model is cheapest?
No. The packs are 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, and every model price converts at the same rate, so the ranking is identical on all three. Only the absolute figure moves. Forty seconds on Veo-3.1 Fast is $5.00, $3.00 or $2.50 depending on the pack; the same 40 seconds on Seedance 2.0 is $41.31, $24.79 or $20.66.
Should I budget extra for regenerations?
The seam count tells you how much to set aside. Forty seconds from 8-second clips is 5 clips and 4 seams; from 5-second clips it is 8 clips and 7 seams, and each seam is a candidate for a retake at the full generation price. First-pass 40 seconds is 7,500 credits on Veo-3.1 Fast and 28,000 on Kling v2.6. One retake per seam adds 6,000 and 24,500 credits respectively, taking the totals to 13,500 credits ($5.40) and 52,500 credits ($20.99) on the 100,000-credit pack.
Другие AI-инструменты Doitong
Run it yourself and compare
Every number on this page comes from the live price list. Generate a clip and check it against your own balance.
Open Doitong