Openai: gpt-5
gpt-5
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gpt-5 (gpt-5) is expected to be a next-generation large language model from OpenAI, following the GPT‑4 and GPT‑4.1 family. Based on OpenAI’s typical roadmap and public commentary, it would likely target substantial improvements in reasoning, reliability, and multimodal capabilities while remaining a general-purpose model for chat, coding, analysis, and content generation. In OpenAI’s lineup, it would probably sit in the high-capability, higher-cost tier, aimed at demanding enterprise and developer use cases rather than lightweight edge or strictly budget scenarios. Public details on its exact size, context window, and benchmarks have not been fully disclosed, but it is generally anticipated to push toward more agentic, tool-using workflows and deeper integration into complex applications.
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",
"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?
gpt-5 (gpt-5) is expected to be a next-generation large language model from OpenAI, following the GPT‑4 and GPT‑4.1 family. Based on OpenAI’s typical roadmap and public commentary, it would likely target substantial improvements in reasoning, reliability, and multimodal capabilities while remaining a general-purpose model for chat, coding, analysis, and content generation. In OpenAI’s lineup, it would probably sit in the high-capability, higher-cost tier, aimed at demanding enterprise and developer use cases rather than lightweight edge or strictly budget scenarios. Public details on its exact size, context window, and benchmarks have not been fully disclosed, but it is generally anticipated to push toward more agentic, tool-using workflows and deeper integration into complex applications.
How much does gpt-5 cost?
Input tokens are priced at $1,50 per 1,000,000 tokens and output tokens at $12,00 per 1,000,000 tokens. Pricing is billed automatically per request; no separate plan is required.
What is the context length of gpt-5?
gpt-5 supports a context window of up to 400,000 tokens.
Does gpt-5 support image input?
Yes, gpt-5 accepts image input in addition to text.
Which provider is gpt-5 from?
gpt-5 is developed by Openai and made available on this gateway through our routing infrastructure.
When was gpt-5 added to this gateway?
gpt-5 has been available on this gateway since September 23, 2026.
Is gpt-5 currently available?
Yes, gpt-5 is active and can be used right now through this gateway.