GPT-5Chat
OpenAI's flagship model — excellent across all task types.
8.4sp50100%up1 rail128K ctx$0.025typical$1.96 → $15.68 /MTok
Models
GPT-5.6 Luna
OpenAI's high-volume GPT-5.6 model with 1.05M context and full tool support.
- Modalities
- textimagetext
- Price
- $0.35 / $1.35/M tok
- Context
- 1.1M
- Max output
- 128K
- Providers
- 1
Playground
Providers
| Provider | Context | Price · in / out |
|---|---|---|
 OpenAINo trainingNo training on your data. Zero-retention available | 1.1M | $0.35 / $1.35/MTok |
Routing controls
routing.strategyproviders.onlyproviders.excludeproviders.ordermax_cost_usddata_policydocs →Performance
Collecting — charts appear after two days.
Pricing
- Typical
- $0.003/req
- Input
- $0.35/M tok
- Cached input
- $0.17/M tok
- Output
- $1.35/M tok
API
POST/api/v1/chat/completionsOpenAI-compatible
gpt-5.6-luna
curl https://www.ninjachat.ai/api/v1/chat/completions \
-H "Authorization: Bearer $NINJACHAT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-luna",
"messages": [{ "role": "user", "content": "Hello!" }],
"stream": true
}'messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choice
FAQ
What is GPT-5.6 Luna?
OpenAI's high-volume GPT-5.6 model with 1.05M context and full tool support.
How much does GPT-5.6 Luna cost?
GPT-5.6 Luna costs $0.35/M input tokens and $1.35/M output tokens.
What inputs and outputs does GPT-5.6 Luna support?
GPT-5.6 Luna accepts text and image and returns text.
How do I call GPT-5.6 Luna?
POST /api/v1/chat/completions with `"model": "gpt-5.6-luna"`.
What other GPT models are on NinjaChat?
GPT-5, GPT-5 Mini, GPT-5.4, GPT-5.4 Pro, GPT-5.6 Sol, GPT-5.6 Terra, GPT-OSS 120B, GPT-OSS 20B, O3 Mini.