GPT-5.1 Codex
kilo/openai/gpt-5.1-codex · family gpt-codex · in: text, image, pdf → out: text · price provider-declared (via models.dev). Capabilities: tools reasoning text image pdf.
$3.44
Blended $/1M (3:1)
$1.25
Input $/1M
$10
Output $/1M
$11.25
1M in + 1M out
$0.13 −90%
Cache read $/1M
#6026 of 7,708
Cheapest rank
- Provider
- Kilo Gateway (
kilo) - Kind
- text (outputs text)
- Context
- 400,000 tokens
- Max output
- 128,000 tokens
- Capabilities
- tools reasoning text image pdf
Same model, other providers
“GPT-5.1 Codex” is offered by 11 providers — cheapest-effective first. OpenCode Zen is the cheapest at $2.93 blended.
| Provider | Input | Output | Blended | Context |
|---|---|---|---|---|
| OpenCode Zen | $1.07 | $8.5 | $2.93 | 400k |
| Kilo Gateway (this) | $1.25 | $10 | $3.44 | 400k |
| Abacus | $1.25 | $10 | $3.44 | 400k |
| OpenRouter | $1.25 | $10 | $3.44 | 400k |
| Azure | $1.25 | $10 | $3.44 | 400k |
| Azure Cognitive Services | $1.25 | $10 | $3.44 | 400k |
| Impossibl | $1.25 | $10 | $3.44 | 400k |
| OrcaRouter | $1.25 | $10 | $3.44 | 400k |
| AIHubMix | $1.25 | $10 | $3.44 | 400k |
| DevPass (LLM Gateway) | $1.25 | $10 | $3.44 | 400k |
| Vivgrid | $1.25 | $10 | $3.44 | 400k |
Call it
jishie indexes & prices models; it does not proxy inference.
Most providers are OpenAI-compatible — point base_url at Kilo Gateway 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-codex","messages":[{"role":"user","content":"hello"}]}'
Route programmatically with MCP find_model / get_model, or fetch this record free (no wallet):