OpenAI: GPT-5.1
OpenAIModerated
openai/gpt-5.1About this model
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
Make a request
OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.
curl https://promptix.tn/api/v1/chat/completions \ -H "Authorization: Bearer $PROMPTIX_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "openai/gpt-5.1", "messages": [ {"role": "user", "content": "Hello! What can you do?"} ] }'Pricing
In TND per 1M tokens. VAT and the platform fee are added at top-up.
Input tokens
4.839 TNDper 1M tokens
Output tokens
38.710 TNDper 1M tokens
1,000 requests with 1K input and 500 output tokens cost about 24.194 TND.
Specifications
- Provider
- OpenAI
- Context window
- 400,000 tokens
- Input modality
- Text
- Added
- Nov 13, 2025
- Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputs