Stream

Stream

API-first chat and activity feed platform

Overview

Stream provides API-first solutions for building chat messaging and activity feeds inside applications. Its products are designed for developers and businesses of all sizes who want to add real-time, engaging communication features to their apps without building them from scratch. How it works: Stream offers APIs for chat, messaging, and activity feeds that developers integrate into their software; pricing is subscription-based and depends on API usage and monthly active users, with tiers from a free plan to custom enterprise plans. How it differs: Stream focuses on a clear API-first model and ready-made, scalable chat and feed features, targeting developers and teams who want to avoid building these capabilities in-house, alongside other API providers and self-built solutions. Its goal: help apps deliver fast, reliable in-app communication and feeds at scale by providing easy-to-integrate APIs and predictable pricing.

About Stream

Simplify's Rating
Why Stream is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Consumer Software

Enterprise Software

Company Size

201-500

Company Stage

Series B

Total Funding

$58.1M

Headquarters

Boulder, Colorado

Founded

2015

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Simplify's Take

What believers are saying

  • Existing billion-user scale supports expansion into AI-first communication workflows.
  • Open-source Vision Agents can attract developers and accelerate ecosystem adoption.
  • Multimodal support creates upsell paths into customer support and collaboration.

What critics are saying

  • Open-source Vision Agents weakens proprietary pricing power and invites in-house forks.
  • Hyperscalers can bundle chat, voice, and vision primitives at lower cost.
  • Multiplatform integrations make Stream replaceable by competing video and AI stacks.

What makes Stream unique

  • Enterprise-grade chat and feeds APIs with broad mobile SDK coverage.
  • Vision Agents adds open-source, video-first multimodal AI orchestration.
  • Stream combines chat, video, memory, and real-time audio integrations.

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Funding

Total Funding

$58.1M

Meets

Industry Average

Funded Over

5 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Meet Average

Industry standards

$35M
$38M
Stream
$45M
Linktree
$65M
Substack
$100M
ClickUp

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

Paid Holidays

Hybrid Work Options

Remote Work Options

Company Equity

401(k) Company Match

401(k) Retirement Plan

Performance Bonus

Parental Leave

Professional Development Budget

Conference Attendance Budget

Wellness Program

Meal Benefits

Company Social Events

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

1%

2 year growth

1%
Cision
Oct 17th, 2025
Stream Launches Vision Agents First Open-Platform, Video-First SDK for Real-Time Vision AI

Stream launches Vision Agents first open-platform, video-first SDK for real-time Vision AI. News provided by. Stream Stream has launched Vision Agents, the first open-source, video-first SDK that lets developers build AI agents capable of seeing, hearing, and understanding in real time. By combining low-latency video intelligence with flexible integrations for leading AI models, Vision Agents unlock a new era of interactive, multimodal applications. BOULDER, Colo., Oct. 17, 2025 /PRNewswire-PRWeb/ - Stream, the leading provider of scalable chat, video, and feeds APIs, today announced Vision Agents, the first open-source, open-platform SDK bringing real-time video and audio intelligence into developer applications. Unlike existing frameworks that bolt video onto voice-first systems, Vision Agents were designed video-first from day one. "Most frameworks started with voice and later added video," said Thierry Schellenbach, CEO and Co-Founder of Stream. "We built the opposite: a video-first foundation that's open, extensible, and developer-friendly." Developers can now create AI-powered agents that see, hear, and remember in real time, enabling a new generation of interactive, multimodal applications. Vision Agents works with Stream Video by default but also integrates with other video SDKs and supports AI providers, including OpenAI Realtime, Google Gemini, and custom models. This flexibility lets companies adopt Vision Agents without disrupting existing infrastructure, while Stream Video and Chat users gain deep integrations for memory, messaging, and performance. Real-Time, Video-First Intelligence Vision Agents process live video with low latency, enabling real-time perception, scene detection, and natural audio or text responses. Core features include: * Video-first intelligence for scene understanding. * Real-time audio with transcription, speech, and voice activity detection. * Memory and context to recall details naturally. * Action-ready design to connect with external APIs and services. Use cases span manufacturing (defect detection), collaboration (AI note-taking, transcription), gaming (coaching, avatars), accessibility (captions, descriptions), and customer support (multimodal assistants). Fully open-source, Vision Agents invites community contributions to extend providers and tools. "Vision AI today feels like ChatGPT in 2022, it's just beginning to show what's possible," said Thierry Schellenbach, CEO and Co-Founder of Stream. Developers and partners can contribute new processors, adapters, and integrations directly on GitHub. Media Contact Emily Roberts, Stream, 1 (303) 835-2196, [email protected], GetStream.io SOURCE Stream

Stream
Aug 6th, 2025
Aviv Group Scales Safe, Real-Time Chat with Stream

Aviv Group scales safe, real-time chat with Stream.

Stream
Jan 3rd, 2024
Building a Google Meet Clone In Jetpack Compose

When Stream released its Video API and Video SDKs, he thought it would be wonderful to provide that same inspiration and help to others.

Stream
Sep 7th, 2023
Video API Update: New React Native SDK, Performance Improvements, & More!

In addition to iOS, Android, React, and Flutter, Stream.io Inc has now released SDK support for React Native and plainJS.

Global Dating Insights
Aug 16th, 2023
How to Spark Romance with Video & Audio Tools

Stream has recently launched its BETA video & audio API solutions, making it easier than ever for online dating developers to upgrade their platform's offerings.

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