AI Generation Cost Calculator -- Compare 6 Providers \
You’re paying $66 a month across four AI tools — Midjourney for images, ElevenLabs for voice, Runway for video clips, and a music tool you forgot to cancel. You used 30% of one plan and 60% of another. The total cost of what you actually generated? Probably under $8.
This AI generation cost calculator does one thing: shows you the real cost across six providers, modality by modality, with the actual math visible. Not “affordable” — a specific dollar amount per image, per minute of voice, per video clip, per music track.
Enter your monthly generation volume below. The calculator compares what you’d pay on FairStack versus Midjourney, ElevenLabs, Runway, Replicate, and OpenAI. Every FairStack price comes from our production API. Every competitor price comes from their public pricing pages as of Q1 2026.
The Calculator
[Interactive component: four sliders for images, voice minutes, video clips, and music tracks. Default values: 100 images, 30 voice minutes, 10 video clips, 5 music tracks. Results table updates in real time.]
Sliders:
| Input | Range | Default | Unit |
|---|---|---|---|
| Images per month | 0 — 5,000 | 100 | Standard quality, 1024x1024 |
| Voice minutes per month | 0 — 500 | 30 | Text-to-speech narration |
| Video clips per month | 0 — 200 | 10 | 5-second clips, 720p |
| Music tracks per month | 0 — 100 | 5 | ~60-second background tracks |
Your Estimated Monthly Cost
| Provider | Images | Voice | Video | Music | Monthly Total |
|---|---|---|---|---|---|
| FairStack | $0.58 | $6.62 | $0.72 | $0.03 | $7.95 |
| Replicate | $5.00 | $1.50 | $4.00 | $0.50 | $11.00 |
| OpenAI | $4.00 | $3.00 | — | — | $7.00+ |
| ElevenLabs | — | $5.40 | — | — | $5.40+ |
| Midjourney | $8.00 | — | — | — | $8.00+ |
| Runway | — | — | $5.00 | — | $5.00+ |
Dashes mean the provider doesn’t offer that modality. ”+’ means you’d still need another provider to cover the missing modalities. FairStack covers all four from one account.
The Full Math (FairStack)
At the default volumes (100 images, 30 min voice, 10 video clips, 5 music tracks):
Images: 100 x $0.0048 (Z-Image Turbo) = $0.48
Voice: 30 x $0.221 (IndexTTS2) = $6.62
Video: 10 x $0.072 (Runway Gen-4 5s) = $0.72
Music: 5 x $0.005 (ACE-Step) = $0.03
------
Total: $7.95/monthEvery price above includes the 20% platform fee. Every API response includes three fields: modelCostMicro, platformFeeMicro, and totalCostMicro. The math is never hidden.
How Much Does AI Generation Actually Cost?
The answer depends on what you’re generating and where. Here’s a per-unit breakdown across providers, using each platform’s most comparable offering.
Image Generation Cost Per Image
| Provider | Model | Cost per Image | Notes |
|---|---|---|---|
| FairStack | Z-Image Turbo | $0.0048 | Economy tier, sub-second |
| FairStack | Imagen 4 Fast | $0.024 | Mid-tier, Google’s Imagen 4 |
| FairStack | Imagen 4 | $0.048 | Best quality tier |
| OpenAI | DALL-E 3 | $0.040 | 1024x1024, standard |
| Replicate | FLUX Schnell | $0.050 | Varies by model |
| Midjourney | Basic plan | ~$0.08 | $10/mo for ~120 images |
| Midjourney | Standard plan | ~$0.03 | $30/mo for ~900 images |
At 100 images per month, FairStack’s economy tier costs $0.48. Midjourney’s Basic plan costs $10.00. That’s a 20x difference — and Midjourney doesn’t offer an API.
Voice Generation Cost Per Minute
| Provider | Model | Cost per Minute | Notes |
|---|---|---|---|
| FairStack | IndexTTS2 | $0.221 | 168 preset voices, voice cloning |
| Replicate | F5-TTS | $0.050 | Limited voice selection |
| OpenAI | TTS-1 | $0.100 | Estimated from per-character pricing |
| ElevenLabs | Starter plan | ~$0.180 | $5/mo for ~28 minutes |
| ElevenLabs | Scale plan | ~$0.060 | $99/mo for ~1,650 minutes |
Voice is the one modality where FairStack’s pricing is comparable to competitors at small volumes. At scale (100+ minutes/month), ElevenLabs’ higher-tier plans become competitive on a per-minute basis. The difference: FairStack has no monthly minimum, your credits never expire, and you get three other modalities from the same balance.
Video Generation Cost Per Clip
| Provider | Model | Cost per Clip | Duration | Notes |
|---|---|---|---|---|
| FairStack | Runway Gen-4 | $0.072 | 5 seconds | Same Runway model, lower price |
| FairStack | Hailuo 2.3 Fast | $0.096 | 6 seconds | Mid-tier option |
| FairStack | Sora 2 | $0.480 | 10 seconds | OpenAI’s video model |
| FairStack | Veo 3.1 Fast | $0.360 | 8 seconds | Google’s best, includes audio |
| Replicate | Various | ~$0.400 | 5 seconds | Varies significantly by model |
| Runway | Standard plan | ~$0.500 | 5 seconds | Estimated from credit pricing |
Video is where the gap is largest. FairStack runs the same Runway Gen-4 model for $0.072 per 5-second clip. Runway’s own platform charges approximately $0.50 for the same output through their credit system. That’s a 7x price difference for identical model output.
Music Generation Cost Per Track
| Provider | Model | Cost per Track | Notes |
|---|---|---|---|
| FairStack | ACE-Step | $0.005 | Self-hosted, ~60-second tracks |
| Replicate | MusicGen | ~$0.100 | Limited selection |
| Suno | Pro plan | ~$0.024 | $24/mo for ~1,000 songs |
| Suno | Basic plan | ~$0.160 | $8/mo for ~50 songs |
Music generation on FairStack costs less than a penny per track. ACE-Step is self-hosted, which means the model cost is pure GPU compute with no per-request API fee from a third party.
How FairStack Pricing Works
Every FairStack generation has two cost components:
- Model cost — the GPU compute required to run the AI model. This varies by model complexity, GPU type, and generation time.
- Platform fee — 20% on infrastructure cost.
Both numbers appear in every API response and every generation receipt in the web app:
{
"cost": {
"modelCostMicro": 60000,
"platformFeeMicro": 12000,
"totalCostMicro": 72000
}
}That’s $0.060 model cost + $0.012 platform fee = $0.072 total for one Runway Gen-4 5-second video clip. Every field is an integer in microdollars (1 dollar = 1,000,000 microdollars). No rounding, no bundling. The web app shows the same breakdown in every generation receipt — same three fields, same math.
Cost Simulation Before You Spend
The API supports a simulate: true flag. Send a generation request with this flag, and you get back the exact cost breakdown without executing the generation or deducting any credits:
curl -X POST https://api.fairstack.ai/v1/generate/image \
-H "Authorization: Bearer fs_key_abc123" \
-H "Content-Type: application/json" \
-d '{
"model": "imagen-4-fast-t2i",
"prompt": "Product photo of a ceramic mug on a marble counter",
"simulate": true
}'{
"simulation": {
"model": "imagen-4-fast-t2i",
"estimatedCost": {
"modelCostMicro": 20000,
"platformFeeMicro": 4000,
"totalCostMicro": 24000
},
"wouldExceedCap": false,
"budgetRemaining": {
"orgMonthlyMicro": 95000000,
"projectMonthlyMicro": 48000000
}
}
}Cost known before a single credit is deducted. No other platform provides this.
Why Other Platforms Charge More
Three structural reasons explain the price gap.
Proprietary model R&D. Midjourney and ElevenLabs invest heavily in their own models. That R&D is real and gets passed to customers. FairStack runs open-source and API-available models — Imagen 4, FLUX.2, IndexTTS2, Runway Gen-4, Veo 3.1, ACE-Step — where the compute cost is the only cost. There’s no research budget to amortize.
Subscription padding. Subscription platforms price for the power user. Midjourney’s $30 Standard plan allows 900 fast images, but a subscriber who generates 50 images pays the same $30 as one who generates 800. The subscription model builds in a buffer for heavy users, and that buffer is paid for by everyone. Per-generation pricing eliminates the cross-subsidy: 50 images at $0.0048 each costs $0.24, not $30.
Enterprise positioning. Replicate and fal.ai price for companies with higher willingness to pay and sales-assisted deals. Their margins reflect that market position. FairStack targets independent developers and creators who need cost control, not concierge onboarding.
There are trade-offs. If you need ElevenLabs’ proprietary Professional Voice Cloning (their highest-fidelity cloning tier), they’re the only option — it’s built on a proprietary model FairStack doesn’t run. For the majority of generation work across images, standard voices, video clips, and music, open-source models deliver comparable quality at a fraction of the cost.
What You Get Beyond the Price Tag
The cost comparison tells half the story. The other half is what happens after you generate something.
One credit balance across four modalities. Add $10 and generate images, voice, video, and music from the same account. No juggling four subscriptions. No four separate billing dashboards.
Outputs that don’t disappear. Every generation is stored permanently in your asset library with metadata, tags, and project organization. On Replicate, outputs auto-delete after 1 hour. On DALL-E, URLs expire. On FairStack, your files are yours — stored on Cloudflare R2 with permanent CDN URLs.
Hard spending caps at three levels. Set limits per organization, per project, and per API key. When a cap is hit, the next request returns a 429 — not a soft warning, not an email alert, a hard block. No credits deducted. This matters for teams and especially for AI agents that don’t read email. Test it in the spending cap simulator.
Cost simulation before execution. The simulate: true flag shown above. Check what any generation costs before committing a single credit. Build agents that check affordability before acting.
Credits that never expire. Top up $10. Use it over six months. No monthly reset, no “use it or lose it” credit pools.
FAQ
How accurate are these cost estimates?
FairStack prices are exact — pulled from the same server/config.ts cost tables that our production API uses. Competitor prices are estimated from publicly available pricing pages as of Q1 2026. For subscription-based competitors, we calculate per-unit costs by dividing the plan price by the stated generation limit. Actual costs vary by plan tier.
Why is FairStack so much cheaper for images and video?
Open-source models (no R&D to recoup), per-generation pricing (no subscription padding), and a transparent 20% platform fee. FairStack doesn’t have a sales team, a community manager team, or a 200-person engineering org to support. The cost structure is different.
What’s included in “model cost”?
The GPU compute to run the model for your specific generation. For per-request models (most image and video models), this is a fixed cost per generation. For per-second models (voice, some video), it scales with output duration. No storage fees, no bandwidth fees, no platform fees beyond the stated 20%.
Do I need a subscription?
No. Add credits ($10 minimum) and generate at infrastructure cost + 20% platform fee. Every model is available to every user. No subscription required.
What if FairStack is more expensive for my specific use case?
It’s possible. High-volume voice users (500+ minutes/month) may find ElevenLabs’ Scale plan ($99/month for ~1,650 minutes) cheaper per minute. This calculator gives you honest numbers for your specific volumes. We’d rather you make an informed decision than discover the trade-off after signing up.
Can I switch between quality tiers per generation?
Yes. Generate one image at $0.0048 (Z-Image Turbo) and the next at $0.048 (Imagen 4). Pass a different model parameter in the API request, or select a different model in the web app. No tier lock-in, no commitment:
# Economy: $0.0048
curl -X POST https://api.fairstack.ai/v1/generate/image \
-d '{"model": "z-image-turbo", "prompt": "Logo concept sketch"}'
# Best quality: $0.048
curl -X POST https://api.fairstack.ai/v1/generate/image \
-d '{"model": "imagen-4-t2i", "prompt": "Product photo, studio lighting"}'Your AI Generation Costs, Calculated
The numbers above come from production pricing data. If the math shows you’re overpaying, the switch takes two minutes: create a FairStack account, add $10 in credits (your first deposit gets a 10% bonus on the first $100 — $10 becomes $11 in credits), and start generating at the per-unit costs this AI generation cost calculator showed you.
Or if you want the full breakdown first: enter your email below to get a personalized cost report with per-model pricing across all FairStack quality tiers, savings versus each competitor at your volumes, and recommendations for your usage pattern.
[Email capture form: “Get Your Personalized Cost Report” — email input + “Send My Cost Report” button. Risk reducer: “Your report plus occasional product updates. Unsubscribe anytime.”]
Want to explore individual models before committing? Browse the AI Model Explorer to compare cost, speed, and quality across every model on FairStack. Or see how FairStack compares to Midjourney and FairStack compares to ElevenLabs in detail.