Perplexity vs Suno
Both are ai tools. Here is what separates them.
| Perplexity | Suno | |
|---|---|---|
| Category | AI | AI |
| Pricing model | freemium | freemium |
| Price from | Freemium | Freemium |
| Upvotes | 6 | 12 |
| What it does | An answer engine that cites its sources instead of listing ten blue links. | Full songs (vocals, instruments, structure), from a text prompt. |
What Perplexity is
Perplexity sells four developer APIs for web search and web grounded answers: a Router API, an Agent API, a Search API and an Embeddings API. Requests authenticate with a bearer token supplied in the Authorization header, and billing is pay as you go, with no subscription required. The Agent API returns answers grounded in the web with citations attached, and it can also route a request to third party models from OpenAI, Anthropic, Google and xAI. The Search API is the lower level option, returning ranked raw web results rather than a written answer. Each result carries a title, a URL and a content snippet, with publication and last updated dates available as optional fields. A call accepts between one and twenty results and returns ten by default, can be restricted to at most twenty domains and twenty languages, and can be filtered by publication date, by last updated date, or by a recency window of an hour, day, week, month or year. The Router API puts open weight models hosted by Perplexity behind a single OpenAI compatible endpoint. Pricing differs by product. The Search API is 5.00 USD per 1,000 requests. Sonar is billed at 1 USD per million input tokens and 1 USD per million output tokens plus a per request fee, and Sonar Pro at 3 USD per million input tokens and 15 USD per million output tokens plus a per request fee. Agent API tool calls are billed per invocation: 0.0025 USD for a web search, 0.0005 USD for fetching a URL, and 0.005 USD each for people search and finance search. Third party models routed through the Agent API are billed per million tokens. Embeddings are cheaper again. The pplx-embed-v1-0.6b model returns 1024 dimensions, accepts up to 32K tokens and costs 0.004 USD per million tokens, while pplx-embed-v1-4b returns 2560 dimensions at 0.03 USD per million tokens. Rate limits are tied to spend. Access is banded into six usage tiers, running from Tier 0 at zero cumulative credit purchased up to Tier 5 at 5,000 USD or more, and Agent API limits rise across that range from 50 requests per minute to 8,000. The Search API is the exception, capped at 50 query units per second regardless of tier. Beyond the raw endpoints, Perplexity publishes a Python SDK and a TypeScript SDK, plus a command line tool that returns structured JSON search results and extracts passages from up to 50 URLs in a single call. On data handling, it operates a zero data retention policy for the Chat Completions API and keeps no prompt or response content, states that customer API data is not used to train its models, and holds a SOC 2 Type II report published through its trust portal.
What Suno is
Suno generates complete songs from a text prompt. Vocals, instruments and song structure arrive together, rather than a backing loop you then have to build something on top of. The core interaction is simple: describe what you want and Suno produces a finished track. From there the tools are for shaping rather than starting again. You can add new vocals or instrumental parts to an existing song, remix a track into a different version, and use the editing features to fine-tune what came back instead of regenerating and hoping. Songs can be generated using your own voice recordings, and versions can be tuned against personal audio samples, so the output can be steered toward a particular sound rather than left to chance. Suno Studio is the heavier editing environment and accepts uploads of up to 30 minutes of audio, which makes it usable for working on material that did not start inside Suno at all. Pricing works on credits. The Pro plan is 8 dollars a month and includes 2,500 credits; the Premier plan is 24 dollars a month and includes 10,000. Credits refresh monthly and do not carry over, either between days or between months, so the plan is best read as a monthly allowance rather than a balance that accumulates. Top-up credits bought separately behave differently: they do not expire, but an active subscription is needed to spend them. Paid plans also carry a download limit, 20 songs a month on Pro and 60 on Premier, and paid users get a priority queue so tracks come back faster when the service is busy. Songs made on a paid plan come with commercial use rights, which is the practical difference between using Suno for demos and using it for work that ships. There is a free tier for trying the model before paying. It is aimed at two groups that rarely share a tool: people making music for the first time who have an idea and no instrument, and people who already make music and want to move faster through the parts of the process that are mechanical.
We are not affiliated with either product. Upvote counts come from the published formula and neither position was paid for.