The Most Comprehensive AI Video Pricing Breakdown: Real Cost Per Second (2026)

Everyone advertises monthly prices. Nobody shows you how many seconds of video that actually buys.

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"$28/month" sounds reasonable until you realize it buys you 7.5 minutes of video. "$6.99/month" sounds cheap until you work out the credits. The AI video industry is built on pricing opacity — and most comparison articles don't do the math.

This one does.

We've broken down every major platform by actual cost per second of usable output, showing the full calculation logic for each. No vague ranges, no marketing spin. Just the arithmetic — and what it means for your budget.

The headline finding: FreeLipSync.com costs $0.0014 per second of HD lip sync video on its Starter plan. The next cheapest competitor costs 30× more. The most expensive in this comparison (Veo 3.1 Standard at 4K) costs 429× more.

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How We Calculate Cost Per Second

Every platform has a different pricing model — monthly subscriptions, credit buckets, pay-per-use APIs. To compare them fairly, we convert everything to a single number: USD per second of usable HD video output.

The formula:

Cost per second = Monthly plan cost ÷ Total seconds of video the plan produces

Where "total seconds" = (credits per month) ÷ (credits consumed per second of video at the relevant quality tier).

For subscription plans with fixed minute allowances (like Synthesia), the math is simpler: monthly cost ÷ (minutes × 60).

For platforms where quality tiers change the credit burn rate (Runway, Kling), we show the calculation at each tier.

One important note: these are lip sync and talking-head video benchmarks specifically. Runway and Kling are cinematic generative tools — they can do things FreeLipSync can't (camera motion, scene generation). We include them for completeness and because many creators use them for talking-head content too.

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The Master Comparison Table

All calculations based on verified plan pricing as of May 2026. Seedance 2.0 prices converted from official Volcengine RMB rates at ¥7.1/$1. Runway and Kling figures use current credit costs at the stated quality level.

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FreeLipSync: The Math That Makes Everything Else Look Overpriced

Three tiers. The free one has no watermark. The paid one costs less than a coffee.

FreeLipSync's Starter plan is worth unpacking in detail because the value is genuinely unusual — and the arithmetic is almost embarrassing for the competition.

Free Tier — $0/second, no limits on clip count

• Unlimited generations, no monthly cap
• Up to 30 seconds per clip at standard resolution
• No watermark — publishable output
• Audio-to-lip-sync, text-to-lip-sync, 100+ languages included

There's no credit system, no countdown clock, no per-clip limit. You can generate 500 clips in a day if you want to. The only constraint is the 30-second per-clip ceiling.

Cost per second: $0.

Starter — $4.99/month

Here's how the math works:

20 HD videos/month × 180 seconds/video (max) = 3,600 seconds of HD output
$4.99 ÷ 3,600 seconds = $0.00139/second = $0.083/minute

That's the maximum-efficiency calculation — assuming you use every video at full 3-minute length. In practice, most creators use shorter clips, so the effective cost per second is higher. Even at half usage (10 videos × 90 seconds average), you're at $0.0028/second — still the cheapest HD option by a wide margin.

Cost per second: $0.0014–$0.0028 (HD, no watermark)

Pro — $29.99/month, unlimited

Unlimited HD videos, each up to 60 minutes. There's no ceiling on monthly output, so cost-per-second approaches zero as usage scales.

At 100 videos × 60 sec average:
$29.99 ÷ 6,000 seconds = $0.005/second

At 500 videos × 120 sec average:
$29.99 ÷ 60,000 seconds = $0.0005/second

Cost per second: $0.0005–$0.005 depending on volume

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Synthesia: Clearest Pricing, Still 16× More Expensive Than FreeLipSync

Starter at $14/month — 10 minutes of output, clean math, but limited volume.

Synthesia is one of the few platforms that publishes a genuinely transparent output limit: the Starter plan gives you 10 minutes of video per month at $14/month (billed annually).

$14/month ÷ (10 minutes × 60 seconds) = $14 ÷ 600 seconds = $0.023/second = $1.40/minute

That's 16× more expensive per second than FreeLipSync Starter.

Synthesia's output quality and avatar library are excellent — particularly for enterprise L&D content. But 10 minutes/month is a hard ceiling that bites fast. If you need more, Creator ($59/month) gives roughly 30 minutes — still $0.033/second.

Cost per second: $0.023 (Starter, annual billing)

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Pika: Reasonable Entry, Credits Burn Fast

Pika's four tiers look affordable — until you calculate how many seconds you're actually buying.

Pika uses a credit-per-second model. Based on verified usage data: a 5-second 1080p video uses approximately 18 credits — that's 3.6 credits per second.

Standard plan — $8/month, 700 credits:

700 credits ÷ 3.6 credits/second = ~194 seconds of 1080p video
$8 ÷ 194 seconds = $0.041/second = $2.47/minute

Pro plan — $28/month, 2,300 credits:

2,300 credits ÷ 3.6 credits/second = ~639 seconds of 1080p video
$28 ÷ 639 seconds = $0.044/second = $2.64/minute

Interestingly, Pika Pro is slightly less efficient per second than Standard — you're paying for speed and features, not purely more seconds. Credits don't roll over.

Cost per second: $0.041–$0.044 (1080p)

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Kling AI: Great Value for Cinematic Video, Complex Credit Math

Kling's membership page: four tiers from $6.99 to $127.99/month. Credit consumption varies by quality mode.

Kling is among the most capable generative video tools available — but its credit system requires careful calculation. A 5-second video in Standard mode costs 20 credits (4 credits/second); Pro mode (higher quality) costs 35 credits for 5 seconds (7 credits/second).

Standard plan — $6.99/month, 660 credits:

Standard mode: 660 ÷ 4 credits/sec = 165 seconds → $6.99 ÷ 165 = $0.042/second = $2.54/minute
Pro mode: 660 ÷ 7 credits/sec = 94 seconds → $6.99 ÷ 94 = $0.074/second = $4.47/minute

Pro plan — $25.99/month, 3,000 credits:

Standard mode: 3,000 ÷ 4 = 750 seconds → $25.99 ÷ 750 = $0.035/second = $2.08/minute
Pro mode: 3,000 ÷ 7 = 428 seconds → $25.99 ÷ 428 = $0.061/second = $3.64/minute

Premier — $64.99/month, 8,000 credits:

Standard mode: 8,000 ÷ 4 = 2,000 seconds → $64.99 ÷ 2,000 = $0.032/second = $1.95/minute

Ultra — $127.99/month, 26,000 credits:

Standard mode: 26,000 ÷ 4 = 6,500 seconds → $127.99 ÷ 6,500 = $0.020/second = $1.20/minute

Notable: credits do not roll over — unused credits at month-end are forfeited. For cinematic generative video, Kling offers the best value among the generative tools at scale. For lip sync specifically, the cost advantage vs FreeLipSync is still enormous.

Cost per second: $0.020–$0.074 depending on plan and quality mode

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HeyGen: Premium Avatars, Premium Cost Per Second

HeyGen Creator at $29/month: unlimited standard video, but Avatar IV (best quality) eats 200 credits fast.

HeyGen's pricing has two layers. Standard avatar videos on Creator are effectively unlimited. But Avatar IV — their highest-quality, most realistic model — costs 20 credits per minute of output, with Creator plans including 200 credits/month.

Avatar IV: 200 credits ÷ 20 credits/minute = 10 minutes of Avatar IV video
$29 ÷ (10 min × 60 sec) = $29 ÷ 600 seconds = $0.048/second = $2.90/minute

For standard quality avatars, HeyGen Creator is less credit-constrained — but the output quality argument for using HeyGen is really tied to Avatar IV. If you're paying $29/month for standard avatar quality, the value case weakens.

The free tier is genuinely limited: 3 videos/month, 1 minute each, watermarked. That's 180 seconds of watermarked output, useful only for evaluation.

Cost per second (Avatar IV): $0.048 — 34× more than FreeLipSync Starter

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Runway: Powerful Generative Video, Expensive Per Second

Runway Pro at $28/month — but 2,250 credits buys far less video than it sounds.

Runway is a top-tier generative video platform. The credit math is where things get complicated — and expensive.

Credit consumption per second varies by model:

Pro plan — $28/month, 2,250 credits:

Gen-4 Turbo: 2,250 ÷ 5 = 450 seconds → $28 ÷ 450 = $0.062/second = $3.73/minute
Gen-4 Standard: 2,250 ÷ 12 = 187 seconds → $28 ÷ 187 = $0.149/second = $8.96/minute
Gen-4.5: 2,250 ÷ 25 = 90 seconds → $28 ÷ 90 = $0.311/second = $18.67/minute

At Gen-4 Turbo quality, Runway Pro produces just 7.5 minutes of video per month. At Gen-4 Standard (what you'd use for finished content), that drops to barely 3 minutes.

For cinematic AI video with camera controls, motion brushes, and style consistency, Runway is worth it. For talking-head or lip sync work, you're paying a steep premium.

Cost per second: $0.062–$0.311 depending on model quality

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Seedance 2.0: ByteDance's Cinematic Model, Priced by the Token

Official Volcengine (火山方舟) pricing for doubao-seedance-2.0 — per-clip rates for 5-second videos at different resolutions.

Seedance 2.0 is ByteDance's flagship video generation model, available via their Volcengine (火山引擎) platform under the model name doubao-seedance-2.0. It's one of the most technically capable models available globally — dual-branch diffusion transformer architecture, native audio generation, multi-shot storytelling from a single prompt, up to 2K output.

The pricing is token-based, but ByteDance publishes a helpful per-clip price table to make it concrete. Official rates for doubao-seedance-2.0 (input: text only, no video):

(Exchange rate: ¥7.1 = $1 USD)

Converting to per-second cost:

480p:

¥2.31 ÷ 5 sec = ¥0.462/sec ÷ 7.1 = $0.065/sec = $3.90/minute

720p (standard HD):

¥4.97 ÷ 5 sec = ¥0.994/sec ÷ 7.1 = $0.140/sec = $8.40/minute

1080p:

¥12.39 ÷ 5 sec = ¥2.478/sec ÷ 7.1 = $0.349/sec = $20.94/minute

How the token math works

Volcengine's official documentation publishes the exact token consumption formula:

Token usage = output_video_duration(s) × output_width × output_height × framerate ÷ 1024

Verification for a 5-second, 720p (1280×720), 24fps clip with no video input:

Tokens = 5 × 1280 × 720 × 24 ÷ 1024 = 107,520 tokens

Cost = 107,520 tokens × (¥46 ÷ 1,000,000) = ¥4.946 ≈ ¥4.97 ✓

That cross-checks exactly with the official per-clip table above. For 480p (854×480) and 1080p (1920×1080), the pixel counts scale accordingly — which is why 1080p costs roughly 5× more than 480p per second (the pixel area ratio is ~5:1).

480p check:  5 × 854 × 480 × 24 ÷ 1024 = 48,000 tokens → 48,000 × ¥46/M = ¥2.21 ≈ ¥2.31 ✓
1080p check: 5 × 1920 × 1080 × 24 ÷ 1024 = 241,920 tokens → 241,920 × ¥46/M = ¥11.13*

*1080p uses a slightly higher token rate in practice (reflected in the official ¥12.39 figure), likely due to quality uplift at higher resolutions.

A few practical notes: The API is available on Volcengine's Ark platform (火山方舟). As of early 2026, availability was in limited rollout with free quotas in the experience center; check current availability on the Volcengine dashboard. Video input mode (for editing or extending existing clips) is priced at ¥28/million tokens instead of ¥46 — that's relevant when you're doing lip sync against an existing video clip.

For comparison context: at 720p, Seedance 2.0 at $0.14/sec is roughly twice what Runway Pro costs per second at Gen-4 Turbo quality, and sits just below Veo 3 Fast at the same resolution. The video quality argument for Seedance 2.0 is strong — it's genuinely world-class output — but it's priced like a premium tool.

Cost per second: $0.065 (480p) / $0.140 (720p) / $0.349 (1080p)

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Veo 3 / Veo 3.1: Google's Flagship Model Has a Budget Option Now

Official Google Gemini API pricing for Veo 3.1 — three tiers from $0.05/sec to $0.60/sec.

Google's Veo models are available through the Gemini API, and as of 2026 the family has expanded to include three distinct tiers: Veo 3.1 Lite (most affordable), Veo 3.1 Fast, and Veo 3.1 Standard (flagship quality). All prices include native audio generation — a meaningful differentiator since most platforms charge separately for sound.

How the pricing works

Unlike credit-based platforms, Veo 3 is billed directly per second of generated output — the simplest possible model. There's no credit conversion, no plan multiplier, no rollover math. The cost formula is literally:

Cost = duration(s) × price_per_second

Official per-second rates from the Gemini API pricing page (ai.google.dev/gemini-api/docs/pricing):

All tiers include native audio generation. No free tier for paid API — free tier access is limited to the Google AI Studio sandbox with data-for-products consent.

The math at each tier:

Veo 3.1 Lite (newest, most affordable):

720p: $0.05/sec = $3.00/minute
1080p: $0.08/sec = $4.80/minute

Example — 60-second video at 720p:
$0.05 × 60 = $3.00 per video

Veo 3 Fast / Veo 3.1 Fast:

720p: $0.10/sec = $6.00/minute
1080p: $0.12/sec = $7.20/minute

Example — 60-second video at 1080p:
$0.12 × 60 = $7.20 per video

Veo 3 Standard / Veo 3.1 Standard (flagship):

720p/1080p: $0.40/sec = $24.00/minute
4K: $0.60/sec = $36.00/minute

Example — 60-second video at 1080p:
$0.40 × 60 = $24.00 per video

The Lite tier is worth highlighting specifically: $0.05/sec is genuinely competitive for an API-native option — cheaper than Runway Pro per second, cheaper than HeyGen, cheaper than Seedance 2.0. It's still 36× more expensive than FreeLipSync Starter, but for developers who need Google's video quality with audio baked in and don't want a subscription, Veo 3.1 Lite is the most accessible entry point in the Veo family.

The Standard tier ($0.40/sec) is at the top end of AI video API pricing today. At that price point, you're paying for absolute top-tier cinematic quality and Google's best-in-class audio synchronization. For any kind of regular content production, these costs make Veo 3 Standard a tool for specific high-value shots rather than a volume workflow.

Cost per second: $0.05–$0.60 depending on tier and resolution (API, all tiers include audio)

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The Full Cost-Per-Second Picture

Here's the complete ranking, from cheapest to most expensive per second of HD output:

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What This Means in Practice

The cost differences look abstract until you think in terms of a real content workflow.

Say you're producing one 2-minute talking-head video per day, 30 days a month — that's 3,600 seconds of output monthly.

For the same 3,600 seconds of output, FreeLipSync costs $4.99. Veo 3.1 Lite costs $180. Runway costs $224. Seedance 2.0 at 720p costs $504. Veo 3 Standard costs $1,440.

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Who Should Use What

High-volume short-form creators (Reels, Shorts, TikTok): FreeLipSync Starter. The math is unambiguous. $4.99/month for 60 minutes of HD lip sync output, unlimited free clips at 30 seconds.

Professional L&D and corporate video teams: Synthesia. The avatar library, slide-to-video workflow, and enterprise features justify the per-second premium for that specific use case.

Cinematic generative video (ads, films, brand work): Kling Pro or Premier for the best value per second among generative tools. Runway if you specifically need its camera controls and editing ecosystem.

Developers who need API-native video with audio: Veo 3.1 Lite at $0.05/sec is the most accessible entry point if you need Google's quality tier without a subscription. Fast tier at $0.10/sec for higher quality. Standard at $0.40/sec only when absolute quality is the constraint, not budget.

Cinematically ambitious production work: Seedance 2.0 (Volcengine API) sits at the quality frontier with resolution flexibility — 480p at $0.065/sec, 720p at $0.14/sec for standard HD. Worth serious consideration for premium branded content, especially for teams already working in the ByteDance/Volcengine ecosystem.

Maximum quality at any cost: Veo 3.1 Standard ($0.40/sec) sits at the top of the market. World-class output with native audio — but eye-watering for anything beyond occasional high-value shots.

Developers building video pipelines: FreeLipSync API for lip sync at scale; Kling or Runway APIs for generative video; Veo 3.1 Lite for Google-quality output where audio sync matters — with costs as analyzed above.

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Final Thoughts

The AI video market has a pricing transparency problem. Credit systems, model tiers, and quality modifiers make it nearly impossible to compare platforms without doing the arithmetic yourself. Most buyers just pick the cheapest-looking monthly plan and discover the real costs after the fact.

Run the numbers, and the picture is stark. Whether you compare by cost-per-second, cost-per-minute, or cost-per-month for equivalent output, FreeLipSync Starter at $4.99/month is in a different category from everything else. For lip sync and talking-head video, the next cheapest option is 14–16× more expensive per second. Seedance 2.0 at 720p — one of ByteDance's finest — costs 100× more. Veo 3.1 Standard costs 286× more. The most expensive option in this comparison (Veo 3.1 Standard at 4K) is 429× more.

The free tier makes it a no-brainer to start. The $4.99 Starter plan makes it a no-brainer to stay.

→ See FreeLipSync pricing

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Last updated: May 2026. Prices verified from official pricing pages. Credit consumption rates sourced from official documentation and verified usage reports.

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Sources & Methodology

• FreeLipSync Pricing — verified directly from pricing page
• Runway: How do credits work? — Gen-4 Turbo = 5 credits/sec, Gen-4 = 12 credits/sec, Gen-4.5 = 25 credits/sec
• Runway Pricing — Pro: $28/month, 2,250 credits
• Pika Pricing — Standard $8/700 credits, Pro $28/2,300 credits; 5-sec 1080p = ~18 credits
• Kling AI Membership Plans — Standard $6.99/660 credits, Pro $25.99/3,000 credits; 5-sec std = 20 credits
• HeyGen Pricing Plans Explained — Avatar IV = 20 credits/min, Creator = 200 credits/month
• Synthesia Pricing — Starter $14/month (annual), 10 min/month
• Volcengine 火山方舟 Model Pricing — Official — doubao-seedance-2.0: ¥46/million tokens at 720p; per-clip prices: ¥2.31 (480p/5s), ¥4.97 (720p/5s), ¥12.39 (1080p/5s)
• ByteDance Seedance 2.0 API Pricing — TechNode — confirms ~¥1/$0.14 per second at standard quality
• Google Gemini API Pricing — Official — Veo 3.1 Lite: $0.05/sec (720p); Veo 3.1 Fast: $0.10/sec (720p); Veo 3.1 Standard: $0.40/sec (720p/1080p), $0.60/sec (4K); all tiers include audio
• Veo 3.1 Launch on Vertex AI — Google Cloud Blog
• Cheapest AI Video Generators 2026 — Percify
• AI Video Generator Pricing 2026 — Magic Hour
• Kling AI Pricing Complete Guide — AI Tool Analysis