Openai: gpt-5-mini
gpt-5-mini
Start building free
gpt-5-mini (gpt-5-mini) appears to follow OpenAI’s established naming pattern for smaller, faster variants of its flagship GPT models, but as of now there is no public, authoritative documentation or announcement specifically describing this exact model. In OpenAI’s ecosystem, a “mini” tier typically implies a lightweight, lower-cost model tuned for high-throughput, latency-sensitive applications such as chatbots, simple agents, and product integrations where speed and price matter more than cutting-edge reasoning. However, without an official model card or release note from OpenAI or other reputable sources, its precise capabilities, size, and positioning within the GPT-5 family cannot be reliably characterized. Any stronger claims about this model’s specs or performance would be speculative at this time.
Pricing
Current price per 1,000,000 tokens. Every request is billed automatically from its exact usage.
Included in plans
Statistics
Live performance and usage of this model, aggregated across all users.
Detailed statistics appear here as soon as this model starts receiving requests.
API
Call this model from any OpenAI-compatible client using your API token.
curl https://apiex.cloud/api/v1/chat/completions \
-H "Authorization: Bearer $NEW_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5-mini",
"messages": [
{
"role": "user",
"content": "Explain quantum entanglement in one paragraph."
}
],
"temperature": 0.7
}'Authentication
Every request must include an Authorization: Bearer <TOKEN> header. Generate a token from your account's API Keys page — its access to models is set automatically from your active plans and redeemed codes, and you can set its rate limit and IP restrictions.
| Parameter | Type | Description |
|---|---|---|
model | string, required | This model's ID, exactly as shown above. |
messages | array, required | Conversation history as role/content objects (system, user, assistant). |
temperature | number, optional | Sampling randomness, typically 0–2. |
max_tokens | integer, optional | Upper limit on tokens generated in the reply. |
top_p | number, optional | Nucleus-sampling threshold, as an alternative to temperature. |
stream | boolean, ignored | Responses are always returned in full so the exact cost can be billed; streaming is not available. |
Replace YOUR_API_KEY with a token from your account, then see the full API reference for every parameter.
Frequently asked questions
What is gpt-5-mini?
gpt-5-mini (gpt-5-mini) appears to follow OpenAI’s established naming pattern for smaller, faster variants of its flagship GPT models, but as of now there is no public, authoritative documentation or announcement specifically describing this exact model. In OpenAI’s ecosystem, a “mini” tier typically implies a lightweight, lower-cost model tuned for high-throughput, latency-sensitive applications such as chatbots, simple agents, and product integrations where speed and price matter more than cutting-edge reasoning. However, without an official model card or release note from OpenAI or other reputable sources, its precise capabilities, size, and positioning within the GPT-5 family cannot be reliably characterized. Any stronger claims about this model’s specs or performance would be speculative at this time.
How much does gpt-5-mini cost?
Input tokens are priced at $0,30 per 1,000,000 tokens and output tokens at $2,40 per 1,000,000 tokens. Pricing is billed automatically per request; no separate plan is required.
What is the context length of gpt-5-mini?
gpt-5-mini supports a context window of up to 400,000 tokens.
Does gpt-5-mini support image input?
Yes, gpt-5-mini accepts image input in addition to text.
Which provider is gpt-5-mini from?
gpt-5-mini is developed by Openai and made available on this gateway through our routing infrastructure.
When was gpt-5-mini added to this gateway?
gpt-5-mini has been available on this gateway since September 23, 2026.
Is gpt-5-mini currently available?
Yes, gpt-5-mini is active and can be used right now through this gateway.