Choose your research tier
From casual exploration to professional-grade verified research. Every tier includes structured delivery, citations, and the INDEKS editorial experience.
Free
£0/forever
10 searches/month
General & Financial books
Standard model (GPT-5 Nano)
Verification
Pod-It audio summaries
10 specialised topics
Pay As You Go
£2/ 80k IDX
Unlimited searches
General & Financial books
Premium model (GPT-5.4)
Verification available
Pod-It audio summaries
Up to 30 specialised topics
Top-up: 40k IDX / £1
Plus
£10/month
500,000 IDX/month included
All General & Financial books
Premium model (GPT-5.4)
Verification included
Pod-It (General & Financial)
Top-up: 50k IDX / £1
Pro
£30/month
1,800,000 IDX/month included
All books + Financial Pro
Premium model (GPT-5.4)
Verification + GPT-o3 review
Pod-It audio summaries (all books)
Top-up: 60k IDX / £1
All prices are in GBP (£). IDX usage is calculated from underlying API costs at 100k IDX per dollar of compute.
Detailed Feature Comparison
| Feature | Free | PAYG | Plus | Pro |
|---|---|---|---|---|
| Books | General, Financial | All 4 | All 4 | All 4 + Financial Pro |
| Model | GPT-5 Nano | GPT-5.4 | GPT-5.4 | GPT-5.4 |
| Verify Model | — | GPT-o3 | GPT-o3 | GPT-o3 |
| IDX Allocation | 10 searches/mo | From £2 / 80k IDX | 500k/mo | 1.8M/mo |
| Top-up Rate | — | 40k / £1 | 50k / £1 | 60k / £1 |
| Specialised Topics | 10 | Unlimited | Unlimited | Unlimited |
| Pod-It Audio | — | — | General, Financial | All books |