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Mirage

New York City, US · 141 employees on LinkedIn · 10 known investors

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Mirage is an AI video company that translates natural language into high-quality videos for creators and businesses using generative models. The platform enables users without technical skills to produce video content at the speed of their ideas.

Also known as Captions · Captions by Mirage

Founders & leadership

GMGaurav Misra
Gaurav Misrain𝕏Co-Founder, CEOBefore starting the company in 2021, he spent five years at Snap Inc. as a software engineer and product designer. Earlier in his career he held engineering roles at Localytics, Microsoft, and Lattice Engines.
DCDwight Churchill
Dwight Churchillin𝕏co-founder and cooHe came to the company in 2021 after working in product at Klaviyo, and previously spent three years at Goldman Sachs on products including Marcus and Clarity Money.

Investors · 10

Also in the syndicate · 2

Adobe VenturesGeneral Catalyst's Customer Value Fund (CVF)lead

Funding

SEC filings, press & company announcements

$75M disclosed across 1 of 2 rounds · 2024–2026

Source: company announcements and press reports — follow each round's link for the claim.

Valuation · disclosed

Disclosed events
$500Mvaluation at Series CJul 2024
filing ↗

Source: SEC prospectus filings, and round valuations the company or its investors disclosed — follow each entry's link for the claim.

Company profile

researched Aug 2026

Mirage is a New York City-based artificial intelligence company building end-to-end foundation models and tooling for generative video. Its systems treat audio, video and text on equal footing, learning script phrasing, vocal cadence, pose, micro-expressions, framing and pacing from a curated, licensed audio-video dataset, with attention to rights, safety and brand control. Mirage Agent, the company's multimodal agent layer, plans, creates, edits and designs video, directing Mirage's proprietary audio and video models alongside third-party models. Announced models include Casting Voices (June 2025), which generates avatar video from audio; Finding Voices (December 2025), an audio model that the company says preserves accents in generated video; and Avatar X (July 2026), which generates a full performance.

Underpinning the products is a rendering engine written with a Rust core and targeting Metal, Vulkan and WebGPU, designed so that every layer of a video — performance, captions, graphics — remains live and editable during collaborative human-AI editing, and so that the same engine runs in the browser, on iPhone and in the cloud. Training and inference are run in-house.

The company's flagship consumer product is Captions, an AI video creation and editing application available on iOS, web and desktop. Mirage also offers a web-based video-creation and marketing suite for creating and distributing video in bulk, and APIs for bulk video generation and captioning. The company has said it intends to merge the mobile-first Captions editing experience with the web marketing suite to serve small businesses producing marketing video.

Founding story

Co-founder and CEO Gaurav Misra spent five years at Snap as head of design engineering, working on a short-form video product used by hundreds of millions of people. That experience with short-form video led him to launch the company in 2021, with co-founder Dwight Churchill, to make high-quality video creation accessible to non-specialists.

Business model

Mirage develops proprietary audio and video foundation models and a rendering engine, and monetizes them through consumer and business software rather than licensing models alone. Captions is distributed free-to-start on iOS, web and desktop, with paid tiers following a January 2025 switch to a freemium model; the company also sells a web-based video-creation and marketing suite for bulk creation and distribution, and offers APIs for bulk video generation and video captioning that other products and workflows can integrate.

Revenue comes from consumer subscriptions and in-app purchases in the Captions app under a freemium model adopted in January 2025, plus a business-facing video-creation and marketing suite and paid API access for bulk video generation and captioning. Analytics firm Appfigures measured $28.4 million of Captions in-app revenue over the 365 days to March 2026, roughly 75% of it from outside the United States.

Traction

Mirage states that over 20 million people generate, edit and design videos with Captions and that more than 200 million videos have been created on the platform. Appfigures data cited in March 2026 recorded over 3.2 million Captions downloads and $28.4 million in in-app revenue over the preceding 365 days, with 25% of revenue from the U.S. At the time of the July 2024 Series C, the company reported more than 10 million mobile downloads over the prior year.

Latest developments

In March 2026 Mirage raised $75 million in growth financing from General Catalyst's Customer Value Fund, following a rebrand from Captions to Mirage and the release of a model tuned for pacing, framing and attention dynamics in short video and a new audio model intended to preserve accents. CEO Gaurav Misra said the company plans further models focused on "assembly intelligence" — assembling video from different sources and components — and that the capital will fund growth and expansion in high-growth Asian markets, alongside plans to merge the web marketing suite with the mobile Captions editing suite for small businesses.

Full profile — market position, technology, go-to-market, geography, history

Market position

Mirage competes in AI video creation and editing against consumer editors such as ByteDance's CapCut and Meta's Edits, and against marketing-oriented AI video pipelines from Canva, D-ID, HeyGen, Webflow and Avataar. Its 2024 Series C valued it at $500 million, and an investor in its 2026 growth round described its product-market fit and unit economics as strong relative to competing tools.

Mirage builds its models together with the products they power, iterating against user signals at scale, and runs training and inference in-house. Its rendering engine keeps every video layer editable rather than producing flat output, supporting collaborative editing between humans and AI across browser, iPhone and cloud. Its models are trained on a curated, licensed audio-video dataset with metadata covering appearance, shot styles, delivery techniques, emotion and scene structure, and it has trained a model specifically for pacing, framing and attention dynamics in short video, as well as an audio model aimed at preserving speakers' accents. An investor in the 2026 round characterized the company as ahead of comparable tools on unit economics.

Technology

Mirage develops end-to-end multimodal foundation models spanning script to audio-video, covering real-world generative modeling, multimodal reasoning, dataset design and collection, audio-video quality evaluation, and large-scale training and inference performed in-house. Named models include Casting Voices (avatar video from audio), Finding Voices (expressive audio, with accent preservation) and Avatar X (full generated performance), coordinated by Mirage Agent, a multimodal agent that plans, creates, edits and designs video using Mirage's own and third-party models. These run on a purpose-built rendering engine with a Rust core targeting Metal, Vulkan and WebGPU that keeps video layers live and editable in the browser, on iPhone and in the cloud. Earlier proprietary technology included AI Creator, a 3D avatar for content creation; AI Edit for one-tap editing; and Lipdub, a model generating lip movement and body language. The company also offers hyperrealistic digital avatars, instant dubbing, audio correction and intelligent captioning.

Go-to-market

Mirage reaches individual creators through free-to-start consumer apps for Captions on iOS, web and desktop, converting users into paying subscribers under a freemium model, and uses that creator and influencer base as an entry point for selling to businesses and enterprises. It additionally sells a web marketing suite for bulk video creation and distribution and offers developer APIs for embedding video generation and captioning into third-party products.

Individual content creators, influencers and podcasters producing short-form and social video; small businesses and marketing and advertising teams creating and distributing video at scale; and developers integrating video generation and captioning through Mirage's APIs.

Geography

Mirage is headquartered in New York City, where it describes itself as a small team, and its products are distributed internationally: only about 25% of revenue comes from the United States, and the company has said it will use its 2026 financing to expand in high-growth Asian markets.

History

Gaurav Misra launched the company in 2021 after five years as head of design engineering at Snap. Operating as Captions, it built generative features including AI Creator, a 3D avatar for content creation, AI Edit for one-tap video editing, and Lipdub, a model generating lip movement and body language. In July 2024 it announced a $60 million Series C led by Index Ventures at a $500 million valuation, bringing total capital raised to $100 million, alongside a stated plan to invest $100 million in generative video research from New York City. The company moved Captions to a freemium model in January 2025, later rebranded from Captions to Mirage to position itself as an AI lab serving advertising and marketing as well as creators, and shipped audio and video models including Casting Voices (June 2025) and Finding Voices (December 2025). In March 2026 it raised $75 million in growth financing from General Catalyst's Customer Value Fund.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Captions app downloads (trailing 365 days, Appfigures)Mar 20263,200,000 downloads
Captions in-app revenue (trailing 365 days, Appfigures)Mar 2026$28.4M
HeadcountAug 2026141
Mobile downloadsJul 202410,000,000 downloads
Share of revenue from the U.S.Mar 202625%
Total capital raisedJul 2024$100M
Users generating, editing and designing videos on CaptionsJan 202620,000,000 users
ValuationJul 2024$500M
Videos created on the platform (cumulative)Mar 2026200,000,000 videos

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

2 people who came through Mirage went on to found or lead other companies.

Competitors · 5

by search overlap

Companies competing with Mirage for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 8

launches, deals, and filings
Jul 2026
Avatar X video model

Avatar X, a video model described as generating the whole performance.

source ↗

Mar 2026
Planned expansion into high-growth Asian markets

Mirage said it would use its $75M growth financing to fuel growth and expand in high-growth Asian markets, and plans to merge its web marketing suite with the mobile-first Captions editing suite to target small businesses.

source ↗

Mar 2026
$75M growth financing from General Catalyst's Customer Value Fund

$75M source ↗

Mar 2026
Rebrand from Captions to Mirage

The startup rebranded from Captions to Mirage over the prior year to position itself as an AI lab producing multiple models and serving industries such as advertising and marketing; Captions remains a flagship product.

source ↗

Dec 2025
Finding Voices audio model released

Mirage released Finding Voices, an audio model for expressive audio generation. The company says the audio model can preserve accents in generated videos, addressing a gap for its international user base.

source ↗

Jun 2025
Casting Voices video model released

Mirage released Casting Voices, a video model that generates avatar video from audio.

source ↗

Jan 2025
Captions moves to a freemium model

The company switched Captions to a freemium pricing model in January 2025 to compete with apps such as ByteDance's CapCut and Meta's Edits.

source ↗

Jul 2024
$60M Series C led by Index Ventures

Series C financing bringing total capital raised to $100 million at a $500 million valuation; proceeds earmarked for machine learning hiring, in-house research and technical infrastructure, including a stated plan to invest $100M in generative video research from New York City.

$60M source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Mirage do?
Mirage is a New York AI company building foundation models and an editable rendering engine for video, maker of the Captions app.
Who founded Mirage?
Mirage was founded by Gaurav Misra, Dwight Churchill.
Who are Mirage's investors?
Mirage's investors include 137 Ventures, Andreessen Horowitz, HubSpot Ventures, Index Ventures, Kleiner Perkins, Antler, General Catalyst, Ludlow Ventures.
How much funding has Mirage raised?
Mirage has disclosed $75M raised across 1 of its 2 known rounds.
Where is Mirage headquartered?
Mirage is headquartered in New York City, US.