Models
gpt-5.1 — API, Pricing & Context Window | Vivgrid
gpt-5.1 on Vivgrid: a general-purpose GPT-5 model with a 272K context window, text, image and audio input, and regional acceleration.
gpt-5.1 is a versatile GPT-5 generation model with a 272K-token context window and support for text, image, and audio inputs. It's a balanced option for agents and assistants that need solid reasoning without flagship pricing.
Vivgrid accelerates gpt-5.1 across AMER and EMEA and exposes it through the same OpenAI-compatible endpoint used by every model in the catalog.
Specifications
| Provider | OpenAI |
| Model ID | gpt-5.1 |
| Best for | General-purpose |
| Context window | 272,000 tokens |
| Max output | 128,000 tokens |
| Modalities | Text, Image, Audio |
| Tool / function calling | Yes |
| Knowledge cutoff | 2024-09 |
| Acceleration | ⚡ Geo-Distributed — AMER, EMEA |
Pricing
Pricing in USD per 1M tokens, matching the provider's rates.
| Input | Cached input | Output |
|---|---|---|
| $1.25 | $0.125 | $10.00 |
Quick start
Call gpt-5.1 through Vivgrid's unified, OpenAI-compatible endpoint. Get an API key from the Vivgrid Console.
curl https://api.vivgrid.com/v1/chat/completions \
-H "Authorization: Bearer $VIVGRID_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.1",
"messages": [
{ "role": "user", "content": "Say hello in English, Chinese and Spanish." }
],
"stream": true
}'Ideal use cases
- Multimodal assistants handling text, image, and audio
- General reasoning and conversation
- Function-calling agents at moderate cost
- Workloads upgrading from
gpt-5
Related models
- gpt-5.2 — the next general-purpose release
- gpt-5 — the original GPT-5 model
- gpt-5.1-codex — Codex-tuned 5.1 for coding