OpenAI offers 79 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 (Lava’s API keys) and unmanaged (bring your own credentials) mode.
Quick Start const response = await fetch ( 'https://api.lava.so/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-5.4-mini' , messages: [{ role: "user" , content: "Hello!" }], }), });
Chat Completions Target URL: https://api.openai.com/v1/chat/completionsContent Type application/jsonStreaming 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-5.4-pro $30.00 $180.00 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-5.4 $2.50 $15.00 gpt-5.4-codex $2.50 $15.00 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-5.3-chat-latest $1.75 $14.00 gpt-5.3-codex $1.75 $14.00 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-5.4-mini $0.75 $4.50 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-5.4-nano $0.20 $1.25 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/embeddingsContent Type application/jsonStreaming 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/speechContent Type application/jsonStreaming 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/transcriptionsContent Type multipart/form-dataStreaming No
Model Input / minute Output / minute whisper-1 $0.006 Free
Image Generation Target URL: https://api.openai.com/v1/images/generationsContent Type application/jsonStreaming 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
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