Models · OpenAI
GPT-5 API, 5x less than the official price
GPT-5 costs $0.25 per million input tokens and $2.00 per million output tokens on Kontinent AI. OpenAI's official price is $1.25 and $10.00, so you pay 5x less (80% less).
- No subscription
- Pay only for requests that get an answer
- Your balance does not expire
- Sign in with Google or email
Price per million tokens
| Tokens | Official price | Kontinent AI |
|---|---|---|
| Input | Official price | $0.25 |
| Output | Official price | $2.00 |
| Cached input | Official price | $0.025 |
USD per million tokens. The official price is OpenAI's, on its price page. Ours is that price times 0.2, for every kind of token. This model thinks before it answers. The thinking is billed as output tokens, at the same multiple.
What jobs cost with GPT-5
| Job | Official price, then ours |
|---|---|
| 1,000 support-bot replies 1,500 tokens in and 500 out, each | Official price |
| One coding-agent session 200,000 tokens in and 20,000 out, uncached | Official price |
| 1,000 document summaries 4,000 tokens in and 300 out, each | Official price |
Each job is priced the way the API bills it. Work out your monthly bill.
Run GPT-5 for $0.09 a session, not $0.45
The same GPT-5, through one API key. Change the base URL and the key, and keep your code. You see what every request cost and what you saved.
- No subscription
- Pay only for requests that get an answer
- Your balance does not expire
- Sign in with Google or email
Your monthly bill
Enter what you spend at the official price and see it on Kontinent AI, in your currency.
5x less than the official price
- At the official price
- $100.00
- With Kontinent AI
- $20.00
- You keep
- $80.00
The model
- Maker
- OpenAI
- Model id
- gpt-5
- Context window
- 400,000 tokens
- Weights
- Closed
- Beyond plain chat
- Tool calling, Structured output (JSON schema), Image input
- Speed, measured by us
- not measured yet
Use GPT-5
POST /v1/chat/completions: the OpenAI SDKs, OpenCode, most OpenAI-compatible tools.POST /v1/responses: Codex, the OpenAI Responses API.
curl https://api.kontinentai.com/v1/chat/completions \
-H "Authorization: Bearer $KONTINENT_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "gpt-5", "messages": [{"role": "user", "content": "Hello"}]}'Setup for each tool: Claude Code, Codex, OpenCode, OpenAI SDK, Anthropic SDK.
Questions
How much does the GPT-5 API cost?
GPT-5 costs $0.25 per million input tokens and $2.00 per million output tokens on Kontinent AI. OpenAI's official price is $1.25 and $10.00, so you pay 5x less (80% less). Cached input is $0.025 per million tokens, against $0.125 official.
Is it the same GPT-5?
Yes. We send your request to the model you name, and nothing else. We check the name of the model that answered on each response.
What does a coding-agent session cost with GPT-5?
A session of 200,000 input tokens and 20,000 output tokens, uncached, costs $0.09 on Kontinent AI and $0.45 at OpenAI's official price.
Can I use GPT-5 with OpenCode or Codex?
Yes. Point OpenCode, Codex at Kontinent AI by changing the base URL and the key. The setup pages in the docs show each one.
What is the context window of GPT-5?
400k tokens (400,000), as OpenAI publishes it.
Compare GPT-5
Other models
Start with GPT-5 today
GPT-5 is 80% less than OpenAI's official price on every token. Top up a prepaid balance and call it from the tools you already use.
- No subscription
- Pay only for requests that get an answer
- Your balance does not expire
- Sign in with Google or email