GPT-5.1 Chat
zenmux/openai/gpt-5.1-chat · in: pdf, image, text → out: text · price provider-declared (via models.dev). Capabilities: tools pdf image text.
$3.44
Blended $/1M (3:1)
$1.25
Input $/1M
$10
Output $/1M
$11.25
1M in + 1M out
$0.12 −90%
Cache read $/1M
#6022 of 7,708
Cheapest rank
- Provider
- ZenMux (
zenmux) - Kind
- text (outputs text)
- Context
- 128,000 tokens
- Max output
- 64,000 tokens
- Capabilities
- tools pdf image text
Same model, other providers
“GPT-5.1 Chat” is offered by 2 providers — cheapest-effective first. This one (ZenMux) is the cheapest.
| Provider | Input | Output | Blended | Context |
|---|---|---|---|---|
| ZenMux (this) | $1.25 | $10 | $3.44 | 128k |
| OrcaRouter | $1.25 | $10 | $3.44 | 128k |
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-5.1-chat","messages":[{"role":"user","content":"hello"}]}'
Route programmatically with MCP find_model / get_model, or fetch this record free (no wallet):