Models
gpt-5-chat — API, Pricing & Context Window | Vivgrid
gpt-5-chat on Vivgrid: a conversation-tuned GPT-5 model with a 128K context window and image input, accessed through one unified API.
gpt-5-chat is the conversation-optimized variant of GPT-5, tuned for natural, helpful multi-turn dialogue. With a 128K-token context window and image input, it's a good fit for product chatbots and assistant experiences.
On Vivgrid, gpt-5-chat is available through the same OpenAI-compatible endpoint and unified API key as every other model, so you can A/B it against alternatives without code changes.
Specifications
| Provider | OpenAI |
| Model ID | gpt-5-chat |
| Best for | General-purpose |
| Context window | 128,000 tokens |
| Modalities | Text, Image |
| Tool / function calling | Yes |
| Knowledge cutoff | 2024-10 |
| Acceleration | 🌐 Global (Centralized) |
Pricing
Pricing for gpt-5-chat matches the provider's published rates. See live pricing in the Vivgrid Console.
Quick start
Call gpt-5-chat 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-chat",
"messages": [
{ "role": "user", "content": "Say hello in English, Chinese and Spanish." }
],
"stream": true
}'Ideal use cases
- Customer-facing chat assistants
- Conversational product experiences
- Multi-turn support and Q&A bots
- Scenarios prioritizing fluent dialogue over deep tool use
Related models
- gpt-5 — the general-purpose GPT-5 model
- gpt-5-mini — smaller, faster sibling
- gpt-5.2 — newer general-purpose model