Phi 4 API Pricing
Microsoft · Open Weights · MIT · released 2025-01. Prices in USD per 1 million tokens. Data snapshot: 2026-08-14.
- Input: $0.07 per 1M tokens
- Output: $0.14 per 1M tokens
- Batch API (input/output): not published
- Prompt-cache read: not published
- Context window: 16K
- Arena ELO: 1220 (as of 2026-08-13)
Cost per request by business use case
List price vs optimized (prompt caching on the cached input share, batch API for async workloads — only where the provider publishes those rates).
| Use case | Tokens (in/out) | Cost/req (list) | Cost/req (optimized) | Monthly @100K req |
|---|---|---|---|---|
| Support Ticket | 1,500 / 500 | $0.000175 | $0.000175 | $18 |
| Knowledge Q&A | 2,000 / 800 | $0.000252 | $0.000252 | $25 |
| Meeting Summary | 10,000 / 1,200 | $0.000868 | $0.000868 | $87 |
| Marketing Content | 2,500 / 1,800 | $0.000427 | $0.000427 | $43 |
| Coding Task | 3,000 / 2,000 | $0.000490 | $0.000490 | $49 |
| Invoice Processing | 1,500 / 600 | $0.000189 | $0.000189 | $19 |
| Call Summary | 2,000 / 700 | $0.000238 | $0.000238 | $24 |
| Agent Workflow | 6,000 / 3,000 | $0.000840 | $0.000840 | $84 |
These are list prices — real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.