StarAPI

claude-opus-4-6 vs claude-opus-5-5

	claude-opus-4-6	claude-opus-5-5
Providers	Anthropic	Anthropic
Input $/M	$5.00	$4.00
Output $/M	$25.00	$20.00
Output multiplier	×5.00	×5.00
Context window	1M tokens	1M tokens
Intelligence index	—	—
Coding index	—	—

What the numbers mean

Input pricing is close — 1.25× apart — so the decision should come down to measured quality on your own evaluation set rather than headline cost.

Tags: claude-opus-4-6 — Chat, Reasoning, Coding, Vision · claude-opus-5-5 — Chat, Reasoning, Coding, Vision

Code

from openai import OpenAI
client = OpenAI(base_url="https://starseaapi.com/v1", api_key="sk-...")

# claude-opus-4-6
client.chat.completions.create(model="claude-opus-4-6", messages=[{"role":"user","content":"Hi"}])

# claude-opus-5-5
client.chat.completions.create(model="claude-opus-5-5", messages=[{"role": "user", "content": "Hi"}])

Compare