S 
SciSpace
Chat-with-PDF for papers, in the year that became a default feature.
KINDA
why this verdict
Downgrade — pay for the workflow, not the AI
ChatGPT and NotebookLM cover the headline feature free, so the $20/mo is now paying for the workflow around it.
- A named launch, not a vibe named, unlinked
- Deep research agents read and synthesise papers free. OpenAI, February 2, 2025 — no announcement link recorded yet.
- How much of the job it covers headline only editorial call
- The headline feature, but not the workflow, data or integrations around it.
- Is there a free way to do it? yes
- 2 of 3 listed replacements have a usable free tier: ChatGPT and NotebookLM.
- What the call is worth $240/yr
- $20/mo at the entry paid tier — $240 a year per seat.
Reason composed from the fields above missing: announcement linked recorded: free replacement listed recorded: two or more escape hatches
- Threatened by
- OpenAI
- Since
- February 2, 2025
- List price
- $20/mo
- Per year
- $240
The backstory
SciSpace lets you ask questions of research papers and find related work. Deep-research modes in free chat products now search literature, read multiple papers and produce cited syntheses. SciSpace holds a niche with its paper database and citation tooling, but the core interaction is no longer scarce.
Escape hatches
switching could free up $240/yr C 
ChatGPT Free tier covers the core job.
chatgpt.com open_in_new N 
NotebookLM Free document grounding with citations.
notebooklm.google open_in_new E 
Elicit Purpose-built literature review.
elicit.com open_in_new2 of 3 replacements have a usable free tier.