GPT-5Chat
OpenAI's flagship model — excellent across all task types.
8.4sp50100%up1 rail128K ctx$0.025typical$1.96 → $15.68 /MTok
Playground
Providers
| Provider | Role | Context | Price · in / out | p50 | p95 | Uptime |
|---|---|---|---|---|---|---|
| ggroqNo trainingNo training on your data. Zero-retention available | Primary | 131K | $0.22 / $0.45/MToksame price, any rail | 193ms | 320ms | 100% |
 fireworksNo trainingNo training on your data. Zero-retention available |
Performance
Collecting — charts appear after two days.
Pricing
- Typical
- $0.002/req
- Input
- $0.22/M tok
- Cached input
- $0.16/M tok
- Output
- $0.45/M tok
API
POST/api/v1/chat/completionsOpenAI-compatible
gpt-oss-20b
curl https://www.ninjachat.ai/api/v1/chat/completions \
-H "Authorization: Bearer $NINJACHAT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-oss-20b",
"messages": [{ "role": "user", "content": "Hello!" }],
"stream": true
}'messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choice
FAQ
What is GPT-OSS 20B?
OpenAI's compact open-weight reasoning model on three independently operated inference rails.
How much does GPT-OSS 20B cost?
GPT-OSS 20B costs $0.22/M input tokens and $0.45/M output tokens.
What inputs and outputs does GPT-OSS 20B support?
GPT-OSS 20B accepts text and returns text.
How do I call GPT-OSS 20B?
POST /api/v1/chat/completions with `"model": "gpt-oss-20b"`.
What other GPT models are on NinjaChat?
GPT-5, GPT-5 Mini, GPT-5.4, GPT-5.4 Pro, GPT-5.6 Luna, GPT-5.6 Sol, GPT-5.6 Terra, GPT-OSS 120B, O3 Mini.