Credits Pricing Guide
What is a credit?
1 credit ≈ $0.01 of AI compute — the actual cost we pay to our AI providers, plus a small markup to keep the lights on.
Search, browsing, and exports are unlimited. Credits only burn on AI generation.
Per-feature credit ranges
Ranges reflect input size & model choice. Most users land near the low end.
Search & Discovery
Keyword search
Unlimited paper-DB lookups, no credits
Free
Query expansion
Light synonym suggestions, included
Free
AI search summary (top-20 papers)
GPT-4o synthesis of result set
1–2 cr
Search drill-down chat (per turn)
Follow-up questions on results
1–2 cr
Discovery feed scoring (per paper)
Background, batched relevance scoring
1–3 cr
Eddii AI Assistant
Eddii chat message
Depends on context length & paper count
1–5 cr
Eddii deep research mode
Multi-step agent with web + paper search
5–25 cr
Systematic Literature Review (SLR)
SLR search (find papers)
Paper DB + supplemental APIs + AI re-rank per query
10–15 cr
Per-paper screening
Title+abstract relevance vs. PICO + inclusion criteria
10–12 cr
Per-paper data extraction
Pulls structured fields (n, design, outcomes, effect sizes)
10–12 cr
Per-paper enrichment column
Limitations, biases, findings, custom columns
1–5 cr
Risk-of-bias scoring (per paper)
Cochrane RoB 2.0 / ROBINS-I
5–10 cr
SLR chat (per message)
Q&A grounded in your screened corpus
5–8 cr
Meta-analysis synthesis (full report)
Forest plot + heterogeneity stats + narrative synthesis
50–175 cr
SLR-to-manuscript draft
PRISMA-formatted full manuscript draft
25–30 cr
Quick report (50 papers)
1-page synthesis with citations
25–100 cr
Writing & Authoring
AI-assisted manuscript drafting
Context-aware writing suggestions
3–10 cr
Citation formatting
Auto-format references in any style
1–2 cr
Papercast & Audio
Preset-voice papercast (3-min)
High-quality AI narration
2–4 cr
Custom-voice papercast
Cloned voice or premium voices
3–8 cr
Frequently asked
Yes — all unused subscription credits roll over indefinitely as long as your subscription is active. If your subscription expires or is cancelled, unused credits are forfeited. Top-up credits never expire while your account is active.