GPT-4.1 Nano vs Phi 4
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 $16.00/month.
| GPT-4.1 Nano | Phi 4 | |
|---|---|---|
| Intelligence | ||
| Arena · Overall(LMArena Elo — higher is better) | 1300✓ | 1217 |
| Arena rank (overall) | #127✓ | #142 |
| Arena · Coding | 1305✓ | — |
| Arena · Math & reasoning | 1290✓ | — |
| Score evidence | Measured | Measured |
| Pricing (USD / 1M tokens) | ||
| Input | $0.1000 | $0.0700✓ |
| Output | $0.4000 | $0.1400✓ |
| Cached input (read) | $0.0250✓ | — |
| Cache write | — | — |
| Blended(3:1 input:output blend) | $0.1750 | $0.0875✓ |
| Specs & capabilities | ||
| Provider | OpenAI | Microsoft |
| Context window | 1M (1,000,000)✓ | 16K (16,384) |
| Max output | 32,768✓ | 16,384 |
| Modalities | text | text |
| Vision | No | No |
| Tool use | Yes | Yes |
| Reasoning | No | No |
| Prompt caching | Yes | No |
| Batch pricing | Yes | No |
| Tokenizer | o200k_base | approx |
| Release date | — | — |
| Status | ga | ga |
Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 18 September 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
GPT-4.1 Nano and Phi 4 are pre-loaded. Adjust the tokens and monthly volume to see which is cheaper for your usage.
Used unless you set active users below.
Results update automatically as you type.
| Phi 4 | Microsoft | $0.000140 | $14.00 | $168.00 | 16,384 |
| GPT-4.1 Nano | OpenAI | $0.000300 | $30.00 | $360.00 | 1,000,000 |
FAQ
Which is cheaper, GPT-4.1 Nano or Phi 4?
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 $30.00/month.
What is the context window of GPT-4.1 Nano and Phi 4?
GPT-4.1 Nano supports 1,000,000 tokens, while Phi 4 supports 16,384 tokens.
Estimates for planning only. Verify current pricing with each provider.