StarSeaAPI
gpt-5.4 vs gpt-5.5
| gpt-5.4 | gpt-5.5 | |
|---|---|---|
| Providers | OpenAI | OpenAI |
| Input $/M | $2.50 | $5.00 |
| Output $/M | $15.00 | $30.00 |
| Output multiplier | ×6.00 | ×6.00 |
| Context window | — | 1.05M tokens |
| Intelligence index | — | — |
| Coding index | 71.1 | 74.9 |
What the numbers mean
gpt-5.4 is roughly 2.0× cheaper on input than gpt-5.5. If your workload passes the quality bar on the cheaper model, that gap compounds across every request; route to gpt-5.5 deliberately rather than by default.
Tags: gpt-5.4 — Chat, Reasoning, Coding, Vision · gpt-5.5 — Chat, Reasoning, Coding, Vision
Code
from openai import OpenAI
client = OpenAI(base_url="https://starseaapi.com/v1", api_key="sk-...")
# gpt-5.4
client.chat.completions.create(model="gpt-5.4", messages=[{"role":"user","content":"Hi"}])
# gpt-5.5
client.chat.completions.create(model="gpt-5.5", messages=[{"role": "user", "content": "Hi"}])