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gpt-5.6-sol vs gpt-6-astra

gpt-5.6-solgpt-6-astra
ProvidersOpenAIOpenAI
Input $/M$5.00$10.00
Output $/M$30.00$50.00
Output multiplier×6.00×5.00
Context window1.05M tokens1.05M tokens
Intelligence index51.354.7
Coding index77.476.9

What the numbers mean

gpt-5.6-sol is roughly 2.0× cheaper on input than gpt-6-astra. If your workload passes the quality bar on the cheaper model, that gap compounds across every request; route to gpt-6-astra deliberately rather than by default.

Measured intelligence index differs by only 3.4 points, which in practice means the two models are interchangeable on most tasks — pick on price and latency.

Tags: gpt-5.6-sol — Chat, Reasoning, Coding, Vision · gpt-6-astra — Chat, Reasoning, Coding, Vision

Code

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

# gpt-5.6-sol
client.chat.completions.create(model="gpt-5.6-sol", messages=[{"role":"user","content":"Hi"}])

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

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