Phi 4 vs Sonar Deep Research
Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, Phi 4 is cheaper by about $586.00/month.
| Phi 4 | Sonar Deep Research | |
|---|---|---|
| Provider | microsoft | perplexity |
| Input / 1M | $0.0700 | $2.00 |
| Output / 1M | $0.1400 | $8.00 |
| Per request (sample) | $0.000140 | $0.00600 |
| Monthly (sample) | $14.00 | $600.00 |
| Context window | 16,384 | 128,000 |
| Vision | No | No |
| Reasoning | No | Yes |
| Arena · Overall | 1217 | — |
Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 28 July 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.
Compare on your own workload
Phi 4 and Sonar Deep Research are pre-loaded. Adjust the tokens and monthly volume to see which is cheaper for your usage.
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| Phi 4 | Microsoft | $0.000140 | $14.00 | $168.00 | 16,384 |
| Sonar Deep Research | Perplexity | $0.00600 | $600.00 | $7,200.00 | 128,000 |
FAQ
Which is cheaper, Phi 4 or Sonar Deep Research?
For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, Phi 4 is cheaper, costing about $14.00/month versus $600.00/month.
What is the context window of Phi 4 and Sonar Deep Research?
Phi 4 supports 16,384 tokens, while Sonar Deep Research supports 128,000 tokens.
Estimates for planning only. Verify current pricing with each provider.