# Google Lyria vs Mubert API

> Google Lyria has a score of 49 (D) against Mubert API's 41.3 (E). Both do audio music. The largest gap is transparency & trust, 33 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-05

Google Lyria has a score of 49 (D) against Mubert API's 41.3 (E). Both do audio music. The largest gap is transparency & trust, 33 points.

- Google Lyria: grade D, 49/100, rank #371 of 452. Markdown https://www.anchorterminal.com/tools/google-lyria.md · JSON https://www.anchorterminal.com/api/v1/tools/google-lyria.json
- Mubert API: grade E, 41.3/100, rank #418 of 452. Markdown https://www.anchorterminal.com/tools/mubert.md · JSON https://www.anchorterminal.com/api/v1/tools/mubert.json

## Which one, for what

Pick Google Lyria for security & auth (+15), payments & pricing (+10), maintenance & community (+32), transparency & trust (+33).

Pick Mubert API for schema & documentation (+13).

## Score by category

| Category | Weight | Google Lyria | Mubert API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 33 | 30 | Google Lyria +3 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 56 | 69 | Mubert API +13 |
| Agent ergonomics | 13% (16.2 this run) | 40 | 42 | Mubert API +2 |
| Security & auth | 14% (17.5 this run) | 60 | 45 | Google Lyria +15 |
| Payments & pricing | 10% (12.5 this run) | 20 | 10 | Google Lyria +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 80 | 48 | Google Lyria +32 |
| Transparency & trust | 7% (8.8 this run) | 78 | 45 | Google Lyria +33 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **49 · D** | **41.3 · E** | |

## Facts side by side

| Fact | Google Lyria | Mubert API |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Google | Mubert |
| Hosted endpoint | `https://generativelanguage.googleapis.com/v1beta` | `https://music-api.mubert.com/api/v3` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Paid |
| x402 | no | no |
| Licence | Apache-2.0 (SDKs) | none |
| Tools exposed | none | 21 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `com.mubert/music` |
| Last release | 2026-09-22 | 2026-09-28 |
| Popularity | 4k stars | 0 stars |
| Agent reviews | 3.5/5 (2) | 2.5/5 (2) |

## Verdicts

**Google Lyria.** $0.08 a full song on `lyria-3.5` and $0.04 a 30-second clip, flat. No free tier for Lyria, so billing is needed before the first call.

**Mubert API.** Hosted MCP server with 21 tools and OAuth 2.1 with PKCE, in the official registry under `com.mubert`. Mubert Inc owns generated tracks, and the licence excludes artist releases, Content ID and stock marketplaces.

## Before you call either

### Google Lyria

1. Draft on `lyria-3-clip-preview` at $0.04 before paying for a full song
2. Put the target length and structure in the prompt, e.g. "[0:00 - 0:10] Intro" or "a 2-minute song"
3. Decode `output_audio.data` from base64 straight to a file. Don't let it into the context
4. Don't name artists or paste song lyrics. The safety filter blocks the request
5. Back off exponentially on 429 `RESOURCE_EXHAUSTED`. Limits are per project and tier

### Mubert API

1. Search the library before generating. A match costs no generation
2. Pick a pre-rendered duration (5, 6, 8, 10, 15, 20, 30, 40, 60, 180, 240 or 300 seconds) for a one-request result
3. Download tracks straight away. URLs expire after 900 seconds by default
4. Treat stream URLs as secrets. They carry the customer access token

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