Heard vs Cognition AI

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-09-29
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At a glance

DimensionHeardCognition AI
PricingFreemiumFreemium (paid tiers not listed)
Primary UseVoice interface for coding AI assistantsAutonomous engineering for enterprise teams
Key IntegrationsClaude Code, CodexGitHub, Slack, Windsurf IDE, Jira, Linear, Datadog, Android Emulator, Windows VM
Best ForIndividual developers wanting hands-free interaction with AI assistantsEnterprise teams with large codebases needing end-to-end automation
Not ForSilent offices, text-only preferences, unstable internetSimple tasks, non-technical users, small projects
Latest NewsLaunched iOS ePub reader with on-device TTS (July 2026)Acquirer of The Interaction Company; FedRAMP High In-Process; Fable 5 cheaper than Opus 4.8
Heard
Heard

Heard narrates your Claude Code and Codex agent sessions out loud — and on the Power tier lets you talk back, including from your iPhone.

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Cognition AI
Cognition AI

Cognition's Devin is an autonomous software engineer that plans, writes, tests, and ships merge-ready production code.

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Pricing
Freemium
Contact Sales
Plans
$0/mo
$15/mo
$30/mo
—
Popularity
6 views
7.3k views
Skill Level
Intermediate
Advanced
API Available
Platforms
DesktopPlugin
WebDesktopAPICLI
Categories
💻 Code & Development🎤 Voice Dictation
🛠️ Autonomous Coding Agents
Features
Voice narration of agent progress, blockers, decisions, and test results
First-class adapters for Claude Code and Codex CLI
Codex desktop followed through a local session observer
Universal `heard run` wrapper for other compatible command line agents
Mission Control for tracking every active agent session
Agent view for live session updates and Dynamic Island progress
Turn view for two-way conversations with agents (Power)
Push-to-talk on computer and phone (Power)
Ambient talk back when you are away from the desk (Power)
iPhone pairing through the browser, no phone app download
Voice replies routed back to the selected supported session
Daily spoken summaries across agent sessions
Local Kokoro voice narration on macOS
Bring-your-own AI and voice provider keys
Brief controls to choose which signals are surfaced
Autonomous planning, coding, testing, and pull request creation inside your repo
SWE-2 coding model launched September 10 2026 at multiple effort levels
SWE-1.7 coding model (July 2026) positioned as frontier intelligence at lower cost
Fusion harness for Fable and Astra models, shipping in Devin Desktop and CLI
Vendor claim of up to 39% efficiency gain on major coding benchmarks with Fusion
FrontierCode 1.1 benchmark scores whether code is actually merge-worthy, not just test-passing
FrontierCode rubric covers correctness, test quality, scope discipline, style, and codebase standards
Auto-Triage for monitored bugs with automated fix pull requests
Security Vulnerability Remediation Program for clearing backlog findings
Session persistence so long jobs survive restarts instead of starting over
Auto-fixes for review comments on open pull requests
Native Windows VMs for cross-platform builds and testing
Android emulator integration for mobile testing in the agent loop
Devin Desktop app plus Windsurf IDE integration
AI Productivity Guarantee with coverage stated up to $10M
Integrations
Claude Code
Codex
GitHub
Linear
Jira
Ghostty
cmux
GitLab
Bitbucket
Slack
Microsoft Teams
Datadog
Windsurf IDE

What real users say: Heard vs Cognition AI

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Heard

No verifiable community signal. We scanned public discussion on Jul 26, 2026 and found posts matching the name “Heard”, but could not establish that they are about this product rather than something else sharing its name. Rather than publish a score built on the wrong subject, we publish none.

Cognition AI

50 mentions across 3 sources · 43% positive — mixed (averaged across 3 sources)

Hacker News, Bluesky, Lemmy

What users praise

  • • End-to-end autonomous planning, coding, and PR creation for enterprise teams.
  • • FrontierCode evaluation ensures merge-worthy code output.
  • • Auto-Triage automates bug monitoring and fix PRs.
  • • Native Windows VM and Android emulator support for cross-platform testing.

What frustrates them

  • • Community feedback is almost nonexistent — little proof of reliability.
  • • Critics question the $10B valuation given unproven adoption.
  • • Political ties to Peter Thiel may deter some users.
  • • Limited transparency on actual customer success stories.

Researched Jul 16, 2026

Who should pick which

  • Enterprise engineering team leader
    Pick: Cognition AI

    Devin automates multi-step workflows like bug triage, PR creation, and legacy modernization, with native Windows VM and Android emulator support—critical for cross-platform enterprise environments.

  • Freelance developer with repetitive strain injury
    Pick: Heard

    Heard allows hands-free coding via voice prompts and AI readouts, reducing keyboard strain while working with Claude Code or Codex.

  • Security-conscious organization
    Pick: Cognition AI

    Devin Security Swarm automates vulnerability detection and patching, and the platform is FedRAMP High In-Process, suitable for regulated industries.

  • Fast thinker who types slowly
    Pick: Heard

    Heard bridges the gap between thought speed and typing speed by enabling voice input for coding prompts, accelerating ideation-to-code.

  • Startup needing autonomous coding
    Pick: Cognition AI

    Devin handles end-to-end tasks like testing, deployment, and PRs—ideal for small teams that need to maximize output without hiring more engineers.

Frequently Asked Questions

Can Heard execute code changes autonomously?

No, Heard is a voice interface that sends spoken prompts to Claude Code or Codex. It does not autonomously plan or execute code changes; it relies on the underlying AI assistant to perform actions.

Does Cognition AI require a specific IDE?

Devin integrates with Windsurf IDE (via Devin Desktop) but also supports GitHub, Slack, Jira, and other tools. It can work alongside VS Code through integrations, but its native workspace is the Devin environment.

Is Heard useful in noisy environments?

Heard supports multi-language accent recognition and low-latency audio processing, but background noise may affect transcription accuracy. It's best suited for quiet or voice-enabled spaces.

Can I use Devin without an enterprise plan?

Devin offers a freemium tier, so individuals can start for free. However, advanced features like Security Swarm, Fusion architecture, and the $10M productivity guarantee likely require a paid plan.

Does Cognition AI support mobile app development?

Yes, Devin includes an Android emulator integration for testing mobile apps, and it also supports Windows VM for building and testing. This makes it suitable for cross-platform projects.

Are both tools available as desktop apps?

Cognition AI's Devin Desktop (Windsurf IDE + Devin Cloud + Agent Command Center) is available. Heard appears to be a voice interface overlay, not a standalone desktop app; likely a browser extension or system-level tool.

Which tool has a money-back guarantee?

Cognition AI offers an AI Productivity Guarantee (up to $10M) for enterprise customers. Heard does not mention any similar guarantee in the provided data.

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Last reviewed: July 26, 2026