Is Phi-3-small-instruct (128k) or GPT-5.4 Pro cheaper?

Phi-3-small-instruct (128k) is cheaper on output tokens ($0.60 vs $180.00 per 1M).

Which has the larger context window, Phi-3-small-instruct (128k) or GPT-5.4 Pro?

GPT-5.4 Pro has the larger context window (1.1M tokens).

Phi-3-small-instruct (128k) vs GPT-5.4 Pro

Phi-3-small-instruct (128k) is cheaper on output tokens, while GPT-5.4 Pro offers a larger context window. Choose Phi-3-small-instruct (128k) or GPT-5.4 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Phi-3-small-instruct (128k)	GPT-5.4 Pro
Provider	Azure	Azure
Input / 1M tokens	$0.15	$30.00
Output / 1M tokens	$0.60	$180.00
Context window	128K	1.1M
Parameters	—	—
Open weights	Yes	No
Released	Apr 2024	Mar 2026

Phi-3-small-instruct (128k) details →GPT-5.4 Pro details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.