xAI Speech with Subsecond Latency
Developed by xAI, the xAI speech family creates natural, high fidelity audio with subsecond latency. Expressive tags shape pauses, whispers, emphasis, and pacing across 20 languages, while adjustable speech speed and text normalization improve control over delivery. Atlas Cloud provides a unified audio endpoint with consistent Unicode character billing and transparent standard pricing for production workflows.
xAI is developed by xAI. Atlas Cloud (operated by Atlas Cloud AI LLC) provides access to it and does not own it. All trademarks belong to their respective owners.
AI Video Models by xAI
Generate cinematic, high-fidelity videos from text and images with the latest AI video generation models on Atlas Cloud.
Grok Imagine Video
Grok Imagine Video gives developers access to xAI’s video family for creating, animating, extending, and editing clips. Generate 1 to 15 second videos from prompts, guide people, objects, or styles with up to seven reference images, and work at 480p or 720p. Atlas Cloud brings these capabilities together through OpenAI-compatible endpoints with transparent pay-as-you-go pricing. Start building today.
Grok Imagine Video 1.5 Lite
Grok Imagine Video 1.5 Lite is xAI's lowest-cost model in the Grok Imagine video family, built for integrated visual and sound generation from prompts or source images. It supports speech aligned to mouth movement and selectable output quality, including 1080p upscaled from 720p. Access both generation modes on Atlas Cloud with pay-as-you-go pricing of $0.02 per second and one OpenAI-compatible key. Start building today.
xAI TTS V1
xAI TTS v1 is xAI's high-fidelity text-to-speech model for converting written content into natural, expressive audio. It supports 20 languages and provides fine-grained delivery control for tailoring how speech sounds across applications. Access the model through Atlas Cloud with one OpenAI-compatible key and transparent pay-as-you-go pricing. Start building today.
Grok Imagine Video 1.5
Grok Imagine Video 1.5 is xAI's video generation family for developers who need controlled motion from prompts and visual inputs. Animate a starting frame with natural language motion instructions, select 480p or 720p for reference workflows, and add an optional reference voice to guide the result. Access supported modes through one OpenAI-compatible Atlas Cloud key with transparent pay-as-you-go pricing. Start building today.
AI Image Models by xAI
Create stunning, production-ready visuals from prompts and references using state-of-the-art AI image generation models on Atlas Cloud.
Grok Imagine Image 2.0
Built by xAI, Grok Imagine Image 2.0 combines polished text-to-image generation with natural-language editing for reference-based workflows. Produce 1K or 2K outputs, move from a prompt to a finished visual, and refine existing images with direct instructions. Atlas Cloud brings every supported endpoint under one OpenAI-compatible API key with transparent pay-as-you-go pricing and simple integration. Start building today.
Grok Imagine
Grok Imagine Image is xAI's family for generating polished visuals and revising one or more reference images through natural language instructions. Its standard and quality endpoints cover text to image creation, single image changes, and indexed multi-image composition. Atlas Cloud brings these workflows into one API, with standard generation and editing priced at $0.02 per image. Start building today.
Large Language Models by xAI
Power chat, reasoning, and agents at scale with leading large language models, served fast and affordably on Atlas Cloud.
xAI Models API Pricing Details
Compare standard vs. our pricing across every xAI model.
| Model | Standard Price (USD) | Our Price (USD) | Discount | |
|---|---|---|---|---|
| Grok Imagine Image 2.0 Developer Edit | $0.04/pic | Start from$0.014/pic | -65% | View |
| Grok Imagine Image 2.0 Developer Text-to-Image | $0.04/pic | Start from$0.014/pic | -65% | View |
| Grok Imagine Video V1.5 Lite Developer Image-to-Video | $0.02 | Start from$0.007/s video | -65% | View |
| Grok Imagine Video V1.5 Lite Developer Text-to-Video | $0.02 | Start from$0.007/s video | -65% | View |
| Grok Imagine Video v1.5 Developer Reference-to-Video | $0.08 | Start from$0.028/s video | -65% | View |
| Grok Imagine Video v1.5 Developer Text-to-Video | $0.08 | Start from$0.028/s video | -65% | View |
Explore models from other providers
Instantly explore and experiment with 400+ production-ready models in the Atlas Playground. Start customizing with one click.
xAI API Use Cases You Can Build on Atlas Cloud
Grok Imagine's image and video endpoints handle generation, editing, and animation from a single API. Teams use them to turn static assets into sound-on video content and to produce visual creative at a pace and cost that wasn't practical before.
Automated E-commerce Product Videos
E-commerce teams build pipelines that animate product images into short video clips using Grok Imagine Video v1.5, with ambient sound and product-context audio generated in the same call. A single product photo becomes a sound-on clip ready for ads and product pages without a video shoot or audio edit. At $0.096 per second on Atlas Cloud, a 10-second product video costs under a dollar.
Brand Ad Creative from Still Assets
Brand teams use Grok Imagine Video v1.5 to turn approved campaign photography into animated social ads with natively generated audio. Because audio and video tokens are produced in the same inference pass, dialogue, sound effects, and ambient music align with the visuals without post-production work. This removes the audio production step from the ad creative workflow entirely.
Film Pre-production Storyboarding
Directors and cinematographers use Grok Imagine Image to generate visual storyboards that show shot composition, camera angle, and lighting before production begins. The 2K resolution output is detailed enough to share with crew as a visual brief for each scene. At $0.06 per image, iterating through multiple shot options costs less than a single hour of production time.
Real Estate Lifestyle Video
Property developers use Grok Imagine Video v1.5 to generate cinematic lifestyle clips from architectural renders or interior photos. A balcony render becomes a sunset-view clip with ambient audio, a kitchen photo becomes a morning scene with natural sound. This replaces expensive lifestyle photography shoots for listings and pre-sale marketing materials.
Multi-reference Image Compositing
Creative teams use Grok Imagine Image Edit's 3-source input to composite elements from multiple reference images into a single output — combining a product shot, a background, and a lighting reference in one API call. This makes it practical to produce campaign variants that maintain brand consistency across different scene settings. Each composite is $0.06 per image on Atlas Cloud.
Indie Game Concept Art and Trailers
Small game studios use Grok Imagine Image to generate concept art during pre-production, then pass key frames into Grok Imagine Video v1.5 to produce animated trailer sequences. The video extension feature lets teams chain clips from a single starting frame to build longer cinematic sequences beyond the 15-second per-call limit. This workflow replaces external animation contractors for early-stage marketing content.
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Contact SalesxAI TTS v1 API Questions, Answered
xAI TTS v1 is a text to speech model from xAI that converts written content into natural, expressive audio. Atlas Cloud provides it as model xai/tts-v1 through its shared audio generation endpoint.
It can produce narration, product voiceovers, accessibility audio, localized speech, and dialogue for voice applications. Expressive tags and adjustable delivery settings help match the generated speech to different scenes and audiences.
Send a POST request to https://api.atlascloud.ai/api/v1/model/generateAudio with Bearer authentication, the model value xai/tts-v1, your text, and a language setting. Then poll the prediction endpoint with the returned task ID or register a webhook for completion.
Atlas Cloud lists more than 80 voices and 20 language options, with automatic language detection available through the auto setting. The multilingual voices Ara, Eve, Leo, Rex, and Sal support every language listed in the endpoint schema.
Add inline tags such as [pause], [laugh], and [sigh], or wrap text with tags such as <whisper> and <slow> to shape delivery. Speech speed is adjustable from 0.7 to 1.5, while optional text normalization improves how numbers, abbreviations, and symbols are spoken.
Choose MP3, WAV, PCM, μ-law, or A-law output according to your playback or telephony requirements. Supported sample rates range from 8,000 to 48,000 Hz, and MP3 output offers bit rates from 32,000 to 192,000 bps.
Atlas Cloud bills xAI TTS v1 at the standard rate of $0.015 per 1,000 input characters. Billing counts Unicode characters, so one CJK character is counted the same way as one Latin letter.
Each Atlas Cloud request accepts up to 15,000 characters of text. Split longer scripts into separate requests and keep the same voice, language, speed, and output settings when you need consistent delivery across segments.
The current Atlas Cloud documentation describes an asynchronous workflow in which you submit a job and retrieve the result by polling or webhook. The request schema includes three latency optimization levels, but the public documentation does not confirm a direct Atlas Cloud WebSocket endpoint.
Explore More Families
Kling 4.0
The Kling 4 API delivers Kling 4.0, the video model Kuaishou released on October 15, 2026. It generates up to 30 seconds in a single pass, follows up to 10 keyframes, blends 15 images, videos, and subjects through Omni Reference, and adds stereo audio with lip sync. Atlas Cloud serves all four endpoints, including video editing, on one OpenAI-compatible key from $0.11 per second. Start building today.
Seedance 2.5
The Seedance 2.5 API gives developers ByteDance Seed’s joint audio and video model, generating 4 to 30 seconds in one pass from text, a first frame, or up to 50 references across images, video, and audio. It edits selected regions, extends clips, and follows white-model and green-screen inputs. Atlas Cloud, an authorized U.S. reseller, adds a 480p draft mode, native 1080p finals, and enhanced 4K delivery with pay-as-you-go pricing.
Wan 3.0
Wan 3.0 is Alibaba’s newest video model, producing up to 30 seconds of 1080p video at 30fps with audio in one generation. Steer it with a text prompt, a first frame, up to 10 reference images, or a document. Standard costs less per second, while Prime keeps the same capabilities and returns results faster. Both run on the same Atlas Cloud key as Wan 2.7, 2.6, and 2.5.
MiniMax H3
MiniMax H3 is MiniMax's multimodal video family for text, image, and reference guided creation. Across supported routes, it preserves subjects from reference media, offers flexible aspect ratios, and pairs generated sound with visuals through H3 Developer, with output profiles selected by endpoint. Atlas Cloud unifies the family behind one OpenAI-compatible key with transparent pay-as-you-go pricing from the standard rate of $0.038 per second. Start building today.
GPT Image 2.5
GPT Image 2.5 is OpenAI’s image generation and editing model, released on September 8, 2026 in two API versions. Flare is the default, with up to 50% lower latency than GPT Image 2, while Sunburst takes longer to give finer control over detailed edits. Both support up to 16 reference images, five quality tiers, transparent backgrounds, and custom sizes up to 3840px. Atlas Cloud serves the GPT Image 2.5 API at OpenAI’s per token rates, or at a flat price per image by 1K, 2K, or 4K tier.
Seedream 5.0 Pro
Seedream 5.0 Pro API gives developers ByteDance's controllable image editing model on Atlas Cloud. It places edits precisely with anchors and coordinates, separates images into editable layers, fuses multiple references, and matches exact colors and materials, with multilingual text at 2K and 3K. On Atlas Cloud you reach it through one key!
Seedance 2.0
Seedance 2.0 is ByteDance’s production video model for precise shot creation. Turn prompts into video, animate a first-frame image with optional last-frame guidance, or shape results with reference media and optional web search. Atlas Cloud brings these workflows into one unified API with transparent pay-as-you-go pricing and one OpenAI-compatible key. Start building today.
Kling V3.0
From Kuaishou, the Kling V3 API family supports text, image, and reference video workflows. Transfer motion while preserving character identity, guide generation with visual references, and edit videos through natural language commands. Atlas Cloud offers Standard and Pro endpoints for different production needs. Update: Kling V4 is now available on Atlas Cloud. Explore it on the[Kling V4](https://www.atlascloud.ai/zh/models/kling-v4) page.
Grok Imagine Video
Grok Imagine Video gives developers access to xAI’s video family for creating, animating, extending, and editing clips. Generate 1 to 15 second videos from prompts, guide people, objects, or styles with up to seven reference images, and work at 480p or 720p. Atlas Cloud brings these capabilities together through OpenAI-compatible endpoints with transparent pay-as-you-go pricing. Start building today.
Vidu Q4 Preview
Vidu Q4 is Vidu's latest flagship video model, designed for image-to-video and reference-to-video generation. It can animate a single still image and create automatic scene transitions, giving developers two input paths for different product workflows. Atlas Cloud provides dedicated API endpoints with published parameter schemas at the verified standard price of $0.04 per second. Start building today.
Gemini Omni 1.1 Flash
Gemini Omni 1.1 Flash is Google DeepMind’s natively multimodal video family for flexible production workflows. Edit existing footage through text instructions, maintain visual consistency with up to 10 reference images and 3 video clips, or extend a shot in chainable segments to 40 seconds. Access every workflow on Atlas Cloud with one OpenAI-compatible API key, pay-as-you-go pricing, and Day-0 availability. Start building today.
Nano Banana 2.1
Nano Banana 2.1 is Google's image model family built on Gemini 3.6 Flash. It delivers Pro-level generation and editing at Flash-level speed, supports natural-language edits and merges across 1 to 14 input images, and maintains consistency for up to 4 characters and 10 objects. Through Atlas Cloud, developers can access the family with one OpenAI-compatible key, reliable uptime, and Day-0 availability. Start building today.
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