Mercury Decide vs Perplexity Decisions: monthly cost
Monthly cost of Inception Mercury Decide and Perplexity Decisions API (pplx-decider) side by side at 10k to 10M requests, from each vendor’s list price.
Classification500 in · 5 out tokens
| Requests / month | Mercury Decide | Perplexity Decisions |
|---|---|---|
| 10k | $0.10 | $0.10 |
| 100k | $1.00 | $1.00 |
| 1M | $10.00 | $10.00 |
| 10M | $100 | $100 |
Formula: 1,000,000 requests × (500 in × $0.02 + 5 out × $0) ÷ 1,000,000
Chatbot turn1,000 in · 300 out tokens
| Requests / month | Mercury Decide | Perplexity Decisions |
|---|---|---|
| 10k | $0.20 | $0.20 |
| 100k | $2.00 | $2.00 |
| 1M | $20.00 | $20.00 |
| 10M | $200 | $200 |
Formula: 1,000,000 requests × (1,000 in × $0.02 + 300 out × $0) ÷ 1,000,000
Agent loop step4,000 in · 500 out tokens
| Requests / month | Mercury Decide | Perplexity Decisions |
|---|---|---|
| 10k | $0.80 | $0.80 |
| 100k | $8.00 | $8.00 |
| 1M | $80.00 | $80.00 |
| 10M | $800 | $800 |
Formula: 1,000,000 requests × (4,000 in × $0.02 + 500 out × $0) ÷ 1,000,000
Price notes
- Inception Mercury Decide · mercury-decide (promo). Shown as a 50%-off promotion from $0.04 per 1M input tokens; promotion end date not stated. Cached input and output $0.
- Perplexity Decisions API · pplx-decider-v1.2. Output free; no per-request fee. State, questions and images count as input.
- List prices before free allowances and taxes. Presets are our assumptions, not vendor figures.
FAQ
Is Mercury Decide or Perplexity Decisions cheaper?
They cost the same for chatbot-size requests: $20.00 a month at 1M requests (prices verified 2026-10-17).
How are the prices compared?
Mercury Decide: $0.02 in / $0 out per 1M tokens (mercury-decide (promo)). Perplexity Decisions: $0.02 in / $0 out per 1M tokens (pplx-decider-v1.2). Same requests and token sizes for both, list prices before free allowances.
Does price decide which to use?
No. Check limits, status and fit on each API page and in the side-by-side compare tool before switching.
SourcesPricing pages
- 1Inception Mercury Decide pricingdocs.inceptionlabs.ai/get-started/modelsVerified 2026-10-17
- 2Perplexity Decisions API pricingdocs.perplexity.ai/getting-started/pricingVerified 2026-10-17