LLM API
Model provider36 modelsPrivacy policy

OpenAI

OpenAI serves 36 models on LLM API: 27 text models, 1 image model, 5 audio models and 3 embedding models, all from OpenAI.

Models and prices

Prices when OpenAI serves the request.

Text 27

Prices per 1M tokens

Text models on OpenAI and their prices on LLM API
OpenAIGPT-6 Astraopenai/gpt-6-astra$10$50$11.05M
OpenAIGPT-6.1 Solopenai/gpt-6.1-sol$2$10$0.11.05M
OpenAIGPT-6.1 Terraopenai/gpt-6.1-terra$1$5$0.051.05M
OpenAIGPT-6 Lunaopenai/gpt-6-luna$0.1$0.5$0.011.05M
OpenAIGPT-6 Solopenai/gpt-6-sol$2$10$0.11.05M
OpenAIGPT-5.6 Lunaopenai/gpt-5.6-luna$0.2$1.2$0.021.05M
OpenAIGPT-5.6 Solopenai/gpt-5.6-sol$4$20$0.41.05M
OpenAIGPT-5.6 Terraopenai/gpt-5.6-terra$2$12$0.21.05M
OpenAIGPT-5.5openai/gpt-5.5$5$30$0.51.05M
OpenAIGPT-5.4 Miniopenai/gpt-5.4-mini$0.75$4.5$0.07400K
OpenAIGPT-5.4openai/gpt-5.4$2.5$15$0.251.05M
OpenAIGPT-5.4 Proopenai/gpt-5.4-pro$30$180$31.05M
OpenAIGPT-5.2openai/gpt-5.2$1.75$14$0.175400K
OpenAIGPT-5.2 Proopenai/gpt-5.2-pro$21$168—400K
OpenAIGPT-4.1 Miniopenai/gpt-4.1-mini$0.4$1.6$0.11M
OpenAIGPT-4.1openai/gpt-4.1$2$8$0.51M
OpenAIGPT-4o Miniopenai/gpt-4o-mini$0.15$0.6$0.075128K
OpenAIGPT-6 Luna Decisionsopenai/gpt-6-luna-decisions$0.1—$0.011.05M
OpenAIGPT-5.4 NanoDeprecatedopenai/gpt-5.4-nano$0.2$1.25$0.02400K
OpenAIGPT-5.3 CodexDeprecatedopenai/gpt-5.3-codex$1.75$14$0.175400K
OpenAIGPT-5.1Deprecatedopenai/gpt-5.1$1.25$10$0.125400K
OpenAIGPT-5 NanoDeprecatedopenai/gpt-5-nano$0.05$0.4$0.005400K
OpenAIGPT-5 MiniDeprecatedopenai/gpt-5-mini$0.25$2$0.025400K
OpenAIGPT-5Deprecatedopenai/gpt-5$1.25$10$0.125400K
OpenAIGPT-5 ProDeprecatedopenai/gpt-5-pro$15$120—400K
OpenAIo3Deprecatedopenai/o3$2$8—200K
OpenAIGPT-4oDeprecatedopenai/gpt-4o$2.5$10$1.25128K

Image 1

Price per image

Image models on OpenAI and their prices on LLM API
OpenAIGPT Image 2openai/gpt-image-2$0.22/ imageGenerate, Edit

Audio 5

Price per minute of audio or per 1K characters

Audio models on OpenAI and their prices on LLM API
OpenAIGPT Live 1gpt-live-1Realtime voice$0.05/ minute
OpenAIGPT-4o Mini TTSgpt-4o-mini-ttsText to speech$0.0006/ 1K characters
OpenAIGPT-4o Mini Transcribegpt-4o-mini-transcribeTranscription$0.003/ minute
OpenAIGPT-4o Transcribegpt-4o-transcribeTranscription$0.006/ minute
OpenAIOpenAI Whisperwhisper-1Transcription$0.006/ minute

Embeddings 3

Price per 1M input tokens

Embeddings models on OpenAI and their prices on LLM API
OpenAIText Embedding 3 Smalltext-embedding-3-small$0.0215368K
OpenAIText Embedding 3 Largetext-embedding-3-large$0.1330728K
OpenAIText Embedding Ada 002text-embedding-ada-002$0.115368K

Send requests to OpenAI

Put openai/ before a model ID and the request goes to OpenAI. If OpenAI’s uptime over the last 5 minutes is below 90%, it goes to another provider of the model, unless it sends X-No-Fallback: true. Routing docs

Example: GPT-6 Astra

POST /v1/chat/completionsSet LLMAPI_KEY to your LLM API key.Chat Completions docs

import os

from openai import OpenAI

client = OpenAI(
    base_url="https://api.llmapi.ai/v1",
    api_key=os.environ["LLMAPI_KEY"],
)

response = client.chat.completions.create(
    model="openai/gpt-6-astra",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Prices synced November 13, 2026.

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