---
title: AI API Pricing — Stable Diffusion API Pricing, Flux, LLM & Video | ModelsLab
description: Transparent AI API pricing for image, video, audio & LLM APIs across 10,000+ models. Subscription plans from $21/mo Basic to $47/mo Standard and $149/mo Open Source Unlimited. Cancel anytime, 100% refund policy.
url: https://modelslab.com/pricing
canonical: https://modelslab.com/pricing
type: website
component: Business/Pricing
generated_at: 2026-08-02T21:31:28.784078Z
---

Replace 10+ API Providers with ModelsLab

AI API Pricing for Every Developer
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99.9% Uptime <200ms API Response 3,600+ Developers 500M+ API Requests Served •  GDPR

Migrating from the Stability AI API? [See the migration guide](https://modelslab.com/stability-ai-alternative)

100% refund policy on monthly & yearly plans — cancel anytime

MonthlyYearly 2 Months Free

 [Contact Sales](https://calendly.com/support-lael/30min?month=2024-11)

Best Value

### Open Source Unlimited

Mission-Critical

$149 /month

Get API Key >>🛡️ 100% refund policy · cancel anytime

Unlimited Open Source Models

100% refund policy

24x7 Support

15 parallel generations ⚡

Access to all APIs

Unlimited generations on all open-source models

For mission critical workloads

Add Team Members

Priority GPU Clusters

Most Popular

### Standard

Production

$47 /month

Get API Key >>🛡️ 100% refund policy · cancel anytime

Moderate Traffic

100% refund policy

Priority Developer Support

10 concurrent API requests ⚡

For Production workloads

API access to all models

Prototype

### Basic

Prototype

$21 /month

Get API Key >>🛡️ 100% refund policy · cancel anytime

Moderate Traffic

100% refund policy

Developer Support via Discord/Email

5 concurrent API requests ⚡

API access to all models

Shared GPU

Frequently Asked Questions

Everything You Need to Know
---

Get answers to common questions about pricing, features, and integration.

Get Expert Support in Seconds

We're Here to Help.
---

Want to know more? You can email us anytime at <support@modelslab.com>

Chat with support[View Docs](https://docs.modelslab.com)


### AI Models Pricing by Feature

ModelsLab meters usage per API call based on the model used. Image generation starts at $0.0047 per image, video generation from $0.02 per second, audio synthesis from $0.001 per character, and LLM inference from $0.20 per million tokens. Models marked Unlimited are included in the unlimited plan.

#### AI Image

72 models available

| Model Name | Provider | Price | Unlimited plan$149/mo Open Source |
|---|---|---|---|
| Qwen Image 2.0 Pro Text To Image | Alibaba Cloud | $0.07500 Per Generation | Billed per call |
| Qwen Image 2.0 Pro Image Edit | Alibaba Cloud | $0.07500 Per Generation | Billed per call |
| Wan 2.7 Image Edit | Alibaba Cloud | $0.03000 Per Generation | Billed per call |
| Wan 2.7 Text To Image | Alibaba Cloud | $0.03000 Per Generation | Billed per call |
| Flux Kontext Pro | BFL | $0.04800 Per Generation | Billed per call |
| Flux 2 Pro Text To Image | BFL | $0.05400 Per Generation | Billed per call |
| Flux 2 Pro Image Editing | BFL | $0.05400 Per Generation | Billed per call |
| Flux 2 Max Image Editing | BFL | $0.24000 Per Generation | Billed per call |
| Flux 2 Max Text To Image | BFL | $0.24000 Per Generation | Billed per call |
| Seedream Text to Image | Byteplus | $0.03300 Per Generation | Billed per call |

Show 62 More

#### AI Audio

23 models available

| Model Name | Provider | Price | Unlimited plan$149/mo Open Source |
|---|---|---|---|
| Eleven multilingual v2 | Elevenlabs | $0.00400 Per Second | Billed per call |
| Scribe v1 | Elevenlabs | $0.00100 Per Second | Billed per call |
| Elevenlabs Voice Changer | Elevenlabs | $0.00500 Per Second | Billed per call |
| Eleven sound effect | Elevenlabs | $0.06000 Per Generation | Billed per call |
| Music | Elevenlabs | $0.00700 Per Second | Billed per call |
| Eleven V3 Text To Speech | Elevenlabs | $0.02000 Per Second | Billed per call |
| Lyria 3 | Google | $0.05000 Per Generation | Billed per call |
| Inworld Text to Speech | Inworld | $6.00000 Per Million Characters | Billed per call |
| Voice isolation | ModelsLab | $0.00470 | Yes |
| Qwen Text to Speech | ModelsLab | $0.00470 Per Generation | Yes |

Show 13 More

#### AI Video

76 models available

| Model Name | Provider | Price | Unlimited plan$149/mo Open Source |
|---|---|---|---|
| Wan 2.5 Text to Video | Alibaba Cloud | $0.50000 Multiplier | Billed per call |
| Wan 2.5 Image to Video | Alibaba Cloud | $0.50000 Multiplier | Billed per call |
| Wan2.6 Image To Video | Alibaba Cloud | $0.50000 Multiplier | Billed per call |
| Wan2.6 Text To Video | Alibaba Cloud | $0.50000 Multiplier | Billed per call |
| Wan2.6 Image To Video (Flash) | Alibaba Cloud | $0.10000 Multiplier | Billed per call |
| WAN 2.7 Text To Video | Alibaba Cloud | $0.50000 Multiplier | Billed per call |
| WAN 2.7 Image To Video | Alibaba Cloud | $0.50000 Multiplier | Billed per call |
| Happyhorse-1.0-t2v | Alibaba Cloud | $0.11200 Multiplier | Billed per call |
| Happyhorse-1.0-i2v | Alibaba Cloud | $0.11200 Multiplier | Billed per call |
| Happyhorse-1.0-video-edit | Alibaba Cloud | $0.11200 Multiplier | Billed per call |

Show 66 More

#### AI Chat

302 models available

| Model Name | Provider | Price | Unlimited plan$149/mo Open Source |
|---|---|---|---|
| Qwen: Qwen3.5 397B A17B | Alibaba Cloud | $2.10000 Per Million Tokens | Billed per call |
| Qwen: Qwen3.5-35B-A3B | Alibaba Cloud | $1.12500 Per Million Tokens | Billed per call |
| Qwen: Qwen3.5-27B | Alibaba Cloud | $1.35000 Per Million Tokens | Billed per call |
| Qwen: Qwen3.5-122B-A10B | Alibaba Cloud | $1.80000 Per Million Tokens | Billed per call |
| Arcee AI Spotlight | Arcee Ai | $0.21600 Per Million Tokens | Billed per call |
| Arcee AI Coder-Large | Arcee Ai | $0.65000 Per Million Tokens | Billed per call |
| Seed 1.8 | Byteplus | $3.00000 Per Million Tokens | Billed per call |
| DeepSeek-R1 | Deepseek | $2.00000 Per Million Tokens | Billed per call |
| DeepSeek V3-0324 | Deepseek | $0.48500 Per Million Tokens | Billed per call |
| DeepSeek R1 Distill Qwen 14B | Deepseek | $1.60000 Per Million Tokens | Billed per call |

Show 292 More

#### AI 3D

2 models available

| Model Name | Provider | Price | Unlimited plan$149/mo Open Source |
|---|---|---|---|
| Text-to-3d | ModelsLab | $0.00470 | Yes |
| Image-to-3d | ModelsLab | $0.00470 | Yes |

### What's Included in Every Plan

Access to all these powerful AI APIs with a single subscription

#### AI Image Generation

Production-ready AI Image generation APIs

##### Specifications

Response Time: ~2-4s

Throughput: 1000+ req/min

Formats: PNG, JPG, WebP

##### Key Features

- SDXL & Flux models
- Image editing
- Batch processing
- CDN delivery

#### AI Video Generation

Text-to-video and video editing APIs

##### Specifications

Response Time: ~30-120s

Throughput: 100+ req/min

Formats: MP4, WebM, GIF

##### Key Features

- Text to Video
- Video Editing
- Custom duration
- Long videos
- Watermark removal

#### AI 3D Assets Generation

3D model and texture generation

##### Specifications

Response Time: ~60-300s

Throughput: 50+ req/min

Formats: GLB, OBJ, FBX

##### Key Features

- Text-to-3D
- Image to 3D
- Multiple formats
- UV mapping

#### AI Audio Generation

Voice cloning and audio generation

##### Specifications

Response Time: ~1-5s

Throughput: 500+ req/min

Formats: MP3, WAV, FLAC

##### Key Features

- Voice cloning
- Text-to-speech
- Music generation
- in 40+ languages

#### Custom trained LLMs

Custom trained language models

##### Specifications

Response Time: ~500ms

Throughput: 10k+ tokens/min

Formats: 10+ LLMs

##### Key Features

- Multiple LLM models
- Open-source models
- Streaming support
- Custom prompts

#### Quick Integration

- RESTful API with JSON responses
- Comprehensive documentation
- SDKs for popular languages
- Postman collection available
- WebSocket streaming support

#### Enterprise Features

- 99.9% uptime SLA guarantee
- Dedicated account manager
- Priority technical support
- Custom rate limits
- Advanced analytics dashboard

### Popular API Pricing Guides

Start with the pricing guides that match how developers actually search for AI APIs.

[#### DeepSeek API Pricing

Pricing guide for teams sizing DeepSeek chat and reasoning workloads.](https://modelslab.com/deepseek-api-pricing) [#### GPT-4o Image Generation API

Compare costs before moving an OpenAI-style image workflow onto our API.](https://modelslab.com/gpt-4o-image-generation-api) [#### ChatGPT Image Generation API

Guide for turning manual image prompting into a repeatable API flow.](https://modelslab.com/chatgpt-image-generation-api) [#### Image Generation API

Per-image pricing across every text-to-image model we serve.](https://modelslab.com/image-generation-api) [#### Text to Video API

What a prompt-to-video clip costs, priced per second of output.](https://modelslab.com/text-to-video-api) [#### Voice Cloning API

Pricing for custom voice models and cloned speech generation.](https://modelslab.com/voice-cloning)

### Start Building in 5 Minutes

Get your API keys and start integrating AI features into your application immediately.

1

#### Get API Keys

Sign up and receive production API keys instantly

2

#### Choose SDK

Install our SDK for your language (Python, Node.js, Go, PHP)

3

#### Start Coding

Use our documentation and examples to integrate AI features

Get Started Now →

Developer Platform Features

Platform Capabilities
---

Production-ready infrastructure built for developers. REST APIs, WebSocket support, comprehensive SDKs, and enterprise-grade security – everything you need to ship AI features fast.

### 99.9% Uptime Guarantee

99.9% uptime SLA with redundant infrastructure across multiple regions

- Multi-region deployment
- Automatic failover
- Load balancing
- 24/7 monitoring

### SDKs for Node.js, Python, Go & PHP

Production-ready SDKs with comprehensive documentation and code examples

- RESTful APIs
- WebSocket support
- TypeScript definitions
- Postman collections

### Encryption & Access Controls

Encrypted in transit and at rest, with per-key access control

- Data encryption
- API key management
- GDPR compliant
- Data deletion on request

### Auto-scaling GPU Capacity

Capacity scales with demand, with per-plan concurrency limits

- Auto-scaling
- Rate limiting
- Usage analytics
- Custom quotas

### REST + WebSocket, Terraform Modules

Easy integration with popular frameworks and platforms

- Webhook support
- CI/CD integration
- Docker images
- Cloud deployment

### Developer-First Technical Support

24/7 engineering support with deep technical expertise

- Discord/Slack integration
- Code-level assistance
- API optimization help
- Production troubleshooting

What You Get

One API Key, Every Modality
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Image, video, audio, 3D and LLM endpoints behind a single account, billed per call.

### Five modalities, one account

Text-to-image, image editing, text-to-video, video editing, speech, music, text-to-3D and LLM chat all share the same API key and wallet.

- Image & image editing
- Video & video editing
- Speech, music & sound effects
- Text-to-3D and LLM chat

### Published SDKs

Install the client for your language, or copy a ready-made request straight out of any model’s playground.

- pip install modelslab
- npm install modelslab
- Examples in cURL, Go & PHP
- Per-model playground snippets

### Built for async work

Video and 3D jobs run for minutes. Pass a webhook URL and we POST the result when the job finishes — no polling loop required.

- Webhook callbacks on completion
- Fetch-result endpoint for polling
- Per-plan concurrency limits
- Usage visible in the dashboard

Plans start at $21/month. Every plan reaches every model — you are never gated to a subset.

Ready to Code AI Features?
---

Get production API keys instantly. Start integrating AI into your codebase today with our developer-first platform designed for serious engineers.

Instant API Keys

Production-ready in 60 seconds

Complete SDKs

Python, Node.js, Go, PHP ready

Enterprise Infrastructure

99.9% uptime, auto-scaling

[ Get Production API Keys→](/dashboard/api-keys) [ View API Documentation](https://docs.modelslab.com/)

Start coding immediately • Plans from $21/month • Scale when ready

## Frequently Asked Questions

### If I buy the Open Source Unlimited plan, are all my generations really unlimited?
Yes — on the $149/month Open Source Unlimited plan, every open-source model (Flux, SDXL, Qwen, WAN, and more) hosted on our own infrastructure gives you unlimited generations with zero credit deduction. You also get 15 parallel API requests, so multiple generations can run at once instead of queuing one by one.

### Do I still need to fund my wallet even though I'm paying $149/month?
Yes, if you plan to use any premium third-party model. The $149/month subscription covers unlimited open-source generations and 15 parallel requests — it doesn't include any wallet credit. Add funds separately whenever you want to call Google, Kling, Seedance, or other premium APIs.

### Is there a free tier or a free trial?
No. ModelsLab is paid-only — there is no free tier, no free credits and no trial plan. Plans start at $21/month (Basic), which includes 3,250 API calls and access to every model in the catalogue. To judge a model before subscribing, open its page: each one shows example outputs and the exact request body you would send.

### Do I need a subscription before I can add funds to my wallet?
Yes. Wallet top-ups are for active subscribers, which is why no "Add Funds" option appears on an account with no plan. Subscribe to any plan and wallet funding unlocks. Accounts that already held a wallet balance keep the ability to top up.

### Does my plan allowance roll over, or reset every month?
Your plan allowance resets at the start of each billing period and unused allowance does not carry forward. Wallet balance works differently: money you have topped up stays on the account until you spend it, and is not cleared when the plan renews.

### Which models are included in unlimited, and which are billed per call?
Open-source models we host ourselves — Flux, SDXL, SD 1.5, WAN and similar — are unlimited on the $149/month Open Source Unlimited plan. Premium third-party models such as Google, Kling, Seedance, Vidu and ByteDance are billed per call from your wallet on every plan, including the unlimited one. The pricing tables on this page carry an "Unlimited" column marking exactly which models are included.

### How much does video generation cost?
Video is priced per second of output or as a multiplier on the model's base rate, depending on the provider — the exact rate for each model is in the AI Video table on this page. A single video clip can cost considerably more than an image, so check the rate for your chosen model before running a batch.

### How many API calls and concurrent requests does each plan include?
Basic at $21/month includes 3,250 API calls and 5 concurrent requests. Standard at $47/month includes 10,000 calls and 10 concurrent requests. Open Source Unlimited at $149/month removes the call limit on open-source models and allows 15 concurrent requests. Every plan can reach every model — plans differ on volume and concurrency, never on which models you may use.

### How do I cancel, and how does the refund policy work?
Cancel from Dashboard → Subscription at any time. Cancelling stops future renewals and you keep access until the end of the period you have already paid for. Monthly and yearly plans carry a 100% refund policy — email support@modelslab.com if you would like a refund processed or if the cancellation flow does not complete for you, and we will handle it directly.

### Can I use what I generate commercially?
Yes. Output you generate through the API is yours to use commercially on every paid plan. Individual third-party models can carry their own upstream licence terms, so check the model page if you are building on one specific closed-source provider.


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*This markdown version is optimized for AI agents and LLMs.*

**Links:**
- [Website](https://modelslab.com)
- [API Documentation](https://docs.modelslab.com)
- [Blog](https://modelslab.com/blog)

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*Generated by ModelsLab - 2026-08-03*