Solar Mini 4 Thinking: private chat, no email
Solar Mini 4 Thinking by Upstage, on Obscurify.ai. Any account can use Solar Mini 4 Thinking, including Pay As You Go with no monthly fee: you pay per message from a prepaid balance. An account is only a random 16-digit number: no email, username, password or phone number. New accounts get $1 of starter credit.
Details
| Model | Solar Mini 4 Thinking |
|---|---|
| Made by | Upstage |
| Model id | upstage/solar-mini4:thinking |
| Context length | 524,288 tokens |
| Input price | $0.055 per 1M tokens |
| Output price | $0.22 per 1M tokens |
| Plan needed | Any account (Pay As You Go and up) |
| Privacy route | Zero-data-retention routes only; your identity is removed before the request is sent |
| Status | Healthy: passed its last health check (answered in 2.6 s) |
| Details last changed | 2026-10-23 |
Prices are what you pay, charged from a prepaid balance per message. Casual and Pro include monthly usage at these same prices. Plans ยท compare all models
API
The OpenAI-compatible API works for any account with a balance, with the same prices and plan rules as the chat. Get an API key from the account page.
curl https://obscurify.ai/v1/chat/completions \
-H "Authorization: Bearer $OBSCURIFY_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "upstage/solar-mini4:thinking", "messages": [{"role": "user", "content": "Hello"}]}'from openai import OpenAI
client = OpenAI(base_url="https://obscurify.ai/v1", api_key="sk-obs1_...")
reply = client.chat.completions.create(
model="upstage/solar-mini4:thinking",
messages=[{"role": "user", "content": "Hello"}],
)
print(reply.choices[0].message.content)More in the API docs.
Questions about Solar Mini 4 Thinking
Can I use Solar Mini 4 Thinking without an account?
You need an account, but an Obscurify.ai account is only a random 16-digit number: no email, username, password or phone number. Any account can use Solar Mini 4 Thinking, including Pay As You Go with no monthly fee: you pay per message from a prepaid balance.
How much does Solar Mini 4 Thinking cost?
$0.055 per million input tokens and $0.22 per million output tokens, charged from a prepaid balance. Casual includes $15 and Pro $35 of usage each month at these same prices.
Which plan do I need for Solar Mini 4 Thinking?
Any account can use Solar Mini 4 Thinking, including Pay As You Go with no monthly fee: you pay per message from a prepaid balance.
Does the model provider see who I am?
No. Your identity is scrambled before the request leaves Obscurify.ai, so the provider sees the text of your prompt (it needs it to answer) but not who sent it. Text requests for Solar Mini 4 Thinking only use zero-data-retention routes. These rely on the providers' published policies; there are no signed agreements.
Are my Solar Mini 4 Thinking chats stored?
Prompts and responses are not stored on Obscurify.ai's servers. Your chat history stays in your browser. IP addresses are kept only to stop abuse and deleted after 30 days.
Can I use Solar Mini 4 Thinking through the API?
Yes. The OpenAI-compatible API at https://obscurify.ai/v1 works for any account with a positive balance, with the same prices and plan rules as the chat. Use the model id upstage/solar-mini4:thinking.