OpenAI offers 72 models through Lava’s AI Gateway, supporting Chat Completions, Embeddings, Text to Speech, Transcription, Image Generation. Authentication uses Authorization: Bearer. See the OpenAI API docs for provider-specific parameters.
Supports both managed API keys (from Lava) and BYOK mode.
Quick Start
const response = await fetch('https://api.lavapayments.com/v1/forward?u=https%3A%2F%2Fapi.openai.com%2Fv1%2Fchat%2Fcompletions', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
Authorization: `Bearer ${forwardToken}`,
},
body: JSON.stringify({
model: 'gpt-5.2',
messages: [{ role: "user", content: "Hello!" }],
}),
});
Chat Completions
Target URL: https://api.openai.com/v1/chat/completions
| |
|---|
| Content Type | application/json |
| Streaming | Yes (set stream: true in request body) |
| Model | Input / 1M tokens | Output / 1M tokens |
|---|
| o1-pro | $150.00 | $600.00 |
| o1-pro-2025-03-19 | $150.00 | $600.00 |
| gpt-4 | $30.00 | $60.00 |
| gpt-4-0613 | $30.00 | $60.00 |
| gpt-5.2-pro | $21.00 | $168.00 |
| o3-pro | $20.00 | $80.00 |
| o3-pro-2025-06-10 | $20.00 | $80.00 |
| gpt-5-pro | $15.00 | $120.00 |
| o1 | $15.00 | $60.00 |
| o1-2024-12-17 | $15.00 | $60.00 |
| o3-deep-research | $10.00 | $40.00 |
| gpt-4-turbo | $10.00 | $30.00 |
| gpt-4-turbo-2024-04-09 | $10.00 | $30.00 |
| gpt-4-0125-preview | $10.00 | $30.00 |
| gpt-4-1106-preview | $10.00 | $30.00 |
| gpt-4o-2024-05-13 | $5.00 | $15.00 |
| computer-use-preview | $3.00 | $12.00 |
| computer-use-preview-2025-03-11 | $3.00 | $12.00 |
| gpt-4o | $2.50 | $10.00 |
| gpt-4o-2024-11-20 | $2.50 | $10.00 |
| gpt-4o-2024-08-06 | $2.50 | $10.00 |
| gpt-4o-search-preview | $2.50 | $10.00 |
| gpt-4o-search-preview-2025-03-11 | $2.50 | $10.00 |
| gpt-4.1 | $2.00 | $8.00 |
| gpt-4.1-2025-04-14 | $2.00 | $8.00 |
| o3 | $2.00 | $8.00 |
| o3-2025-04-16 | $2.00 | $8.00 |
| o4-mini-deep-research | $2.00 | $8.00 |
| davinci-002 | $2.00 | $2.00 |
| gpt-5.2 | $1.75 | $14.00 |
| gpt-5.2-chat-latest | $1.75 | $14.00 |
| gpt-5.2-codex | $1.75 | $14.00 |
| gpt-3.5-turbo-instruct | $1.50 | $2.00 |
| gpt-5.1 | $1.25 | $10.00 |
| gpt-5.1-codex | $1.25 | $10.00 |
| gpt-5.1-codex-max | $1.25 | $10.00 |
| gpt-5-codex | $1.25 | $10.00 |
| gpt-5 | $1.25 | $10.00 |
| gpt-5-2025-08-07 | $1.25 | $10.00 |
| gpt-5-chat-latest | $1.25 | $10.00 |
| gpt-5.1-chat-latest | $1.25 | $10.00 |
| gpt-5-search-api | $1.25 | $10.00 |
| o4-mini | $1.10 | $4.40 |
| o4-mini-2025-04-16 | $1.10 | $4.40 |
| o3-mini | $1.10 | $4.40 |
| o3-mini-2025-01-31 | $1.10 | $4.40 |
| gpt-3.5-turbo-1106 | $1.00 | $2.00 |
| gpt-3.5-turbo | $0.50 | $1.50 |
| gpt-3.5-turbo-0125 | $0.50 | $1.50 |
| gpt-4.1-mini | $0.40 | $1.60 |
| gpt-4.1-mini-2025-04-14 | $0.40 | $1.60 |
| babbage-002 | $0.40 | $0.40 |
| gpt-5.1-codex-mini | $0.25 | $2.00 |
| gpt-5-mini | $0.25 | $2.00 |
| gpt-5-mini-2025-08-07 | $0.25 | $2.00 |
| gpt-4o-mini | $0.15 | $0.60 |
| gpt-4o-mini-2024-07-18 | $0.15 | $0.60 |
| gpt-4o-mini-search-preview | $0.15 | $0.60 |
| gpt-4o-mini-search-preview-2025-03-11 | $0.15 | $0.60 |
| gpt-4.1-nano | $0.10 | $0.40 |
| gpt-4.1-nano-2025-04-14 | $0.10 | $0.40 |
| gpt-5-nano | $0.05 | $0.40 |
| gpt-5-nano-2025-08-07 | $0.05 | $0.40 |
Embeddings
Target URL: https://api.openai.com/v1/embeddings
| |
|---|
| Content Type | application/json |
| Streaming | No |
| Model | Input / 1M tokens | Output / 1M tokens |
|---|
| text-embedding-3-large | $0.13 | Free |
| text-embedding-ada-002 | $0.10 | Free |
| text-embedding-3-small | $0.02 | Free |
Text to Speech
Target URL: https://api.openai.com/v1/audio/speech
| |
|---|
| Content Type | application/json |
| Streaming | No |
| Model | Input / 1M chars | Output / 1M chars |
|---|
| tts-1-hd | $30.00 | Free |
| tts-1 | $15.00 | Free |
Transcription
Target URL: https://api.openai.com/v1/audio/transcriptions
| |
|---|
| Content Type | multipart/form-data |
| Streaming | No |
| Model | Input / minute | Output / minute |
|---|
| whisper-1 | $0.0060 | Free |
Image Generation
Target URL: https://api.openai.com/v1/images/generations
| |
|---|
| Content Type | application/json |
| Streaming | No |
| Model | Input / 1M tokens | Output / 1M tokens |
|---|
| gpt-image-1 | $5.00 | Free |
| dall-e-3 | Free | $0.04 |
| dall-e-2 | Free | $0.02 |
Next Steps
