GPT-5.5 Instant
zenmux/openai/gpt-5.5-instant · in: text, image, pdf → out: text · price provider-declared (via models.dev). Capabilities: tools reasoning text image pdf.
$11.25
Blended $/1M (3:1)
$5
Input $/1M
$30
Output $/1M
$35.00
1M in + 1M out
$0.5 −90%
Cache read $/1M
#7351 of 7,710
Cheapest rank
- Provider
- ZenMux (
zenmux) - Kind
- text (outputs text)
- Context
- 400,000 tokens
- Max output
- 128,000 tokens
- Capabilities
- tools reasoning text image pdf
Call it
jishie indexes & prices models; it does not proxy inference.
Most providers are OpenAI-compatible — point base_url at ZenMux and pass this model id:
curl $BASE_URL/v1/chat/completions \
-H "Authorization: Bearer $API_KEY" -H "Content-Type: application/json" \
-d '{"model":"openai/gpt-5.5-instant","messages":[{"role":"user","content":"hello"}]}'
Route programmatically with MCP find_model / get_model, or fetch this record free (no wallet):