Side-by-side comparison
Inflection 3 Pi vs Sonar Deep Research
| Inflection 3 Pi | Sonar Deep Research | |
|---|---|---|
| Provider | Inflection | Perplexity |
| Context window Maximum tokens (input + output) the model can process in a single request. Glossary → | 8,000 | 128,000 |
| Capabilities Optional capabilities the model advertises: vision (images), tools (function calling), json_mode (structured output). | text-only | text-only |
| Input $ / 1M tokens Cost for tokens you send (prompt + context). Cheaper side highlighted. Glossary → | 2.5000 | 2.0000 |
| Output $ / 1M tokens Cost for tokens the model generates. Output is normally 3–5× pricier than input. Glossary → | 10.0000 | 8.0000 |
Frequently asked questions
Which is cheaper, Inflection 3 Pi or Sonar Deep Research?
Sonar Deep Research is cheaper than Inflection 3 Pi on a 50/50 input/output blend by about $1.25 per 1M tokens. Exact savings depend on your input-vs-output ratio — use the cost calculator on this page for a workload-specific estimate.
Which has a larger context window, Inflection 3 Pi or Sonar Deep Research?
Sonar Deep Research has the larger context window at 128k tokens versus 8k tokens for Inflection 3 Pi. That means Sonar Deep Research can ingest about 16.0x as much text per request.
What is the difference between Inflection 3 Pi and Sonar Deep Research?
Inflection 3 Pi comes from Inflection; Sonar Deep Research comes from Perplexity. They differ in pricing, context window, and supported capabilities — see the side-by-side table on this page for the exact figures, refreshed nightly.