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May 2024-Feb 2026
Early 2024-Nov 2025
| Round (date, lead) | Amount Raised | Post-Money Valuation | Notable Investors |
|---|---|---|---|
| Seed (2023) | Undisclosed | n/a | Matrix Partners, Founder Collective |
| Series B (2024-05, Lightspeed) | $125M | $500M | Lightspeed, Nat Friedman, Daniel Gross, Matrix Partners, Founder Collective |
| Series C (2025-11, Menlo / Lightspeed) | ~$250M | $2.45B | Menlo Ventures, Nvidia NVentures, Hallwood Media, Lightspeed, Matrix Partners |
| Series D (2026-06, Bond Capital) | $400M+ | $5.4B | Bond Capital (lead), IVP, Forerunner, Union Square Ventures, Alkeon Capital Management |
| Date | Event | Significance for Suno |
|---|---|---|
| Jun 2024 | RIAA files for UMG, Sony, Warner (D. Mass) | Alleges training on commercial sound recordings without a license; statutory-damages exposure on thousands of works |
| 2025 (ongoing) | Labels amend complaint | Reporting cites 60,000+ recordings added to the infringement claims, raising the damages ceiling |
| Nov 2025 | Warner settles and signs licensing deal | Suno's first major-label license; package includes Songkick moving to Suno; Suno agrees to deprecate unlicensed-trained models |
| Late 2025 / early 2026 | Class actions and indie suits filed | Nguyen v. Suno, Kim v. Uncharted Labs (independent artists), and Poseidon Wave Media broaden the rights exposure beyond the majors |
| Apr 2026 | Discovery ruling shields Warner settlement terms | Magistrate blocks UMG and Sony from obtaining the confidential Warner agreement; Suno defends on fair-use (Bartz / Second Circuit) grounds |
| Jun 2026 | $400M+ raised at $5.4B with UMG + Sony still suing | Round teases Suno's first licensed model; valuation more than doubles despite unresolved major-label litigation |
| Date | Version | Notable capability / significance |
|---|---|---|
| Dec 2023 | v2 | First viral text-to-song release; web app + Microsoft Copilot plugin; generations capped near 80 seconds |
| Spring 2024 | v3 | Two-minute generations; copyright-aware lyric handling; the model behind the May 2024 user surge |
| Summer 2024 | v3.5 | Better song structure; up to ~4-minute first generation with two-minute extends |
| Nov 2024 | v4 | Frontier vocal-quality jump; Extend, Cover, and Persona; targets production workflows |
| May 2025 | v4.5 | Up to 8-minute first generation; stronger prompt adherence; smarter style mashups |
| Jul 2025 | v4.5+ | Add Vocals and Add Instrumental production tools; replaced the free-tier model |
| Sep 2025 | v5 | 44.1 kHz studio-quality output; richer instrument layers; reduced distortion and more authentic vocals |
| Mar 2026 | v5.5 | Personalization pivot: Voices (sing in your own cloned voice), Custom Models (fine-tune on your catalog), My Taste (learned preferences) |
| Funnel stage | Count / rate | Note |
|---|---|---|
| Total registered users | 100M+ | Cumulative registered users as of Feb 2026 |
| First-time users who exhaust the free tier | ~50% | Per Sacra; top of the paid-conversion funnel |
| Paid subscribers (Pro + Premier) | 2M+ | Milestone crossed Feb 2026; the ARR driver |
| Implied paid-conversion rate | ~2% | 2M paid / 100M+ users; sensitivity here drives ARR |

$PRIVATE
Largest AI lab by revenue. Approximately $13B annualized run-rate revenue (mid-2025) from a mix of ChatGPT consumer subscriptions, ChatGPT Enterprise / Team, the OpenAI API, and Microsoft Azure OpenAI revenue share. ChatGPT reaches roughly 800M weekly active users (late 2025). Builder of the GPT family (GPT-4o, GPT-4.5, GPT-5, o-series reasoning models) and Sora video. Microsoft is the dominant compute and distribution partner; SoftBank led the $40B March 2025 primary round at $300B.