OpenAI text to speech (gpt-4o-mini-tts, tts-1, tts-1-hd), paid per call in USDC. OpenAI list $15 / $30 per 1M characters (tts-1 / tts-1-hd) or $12 per 1M audio tokens (gpt-4o-mini-tts, quoted at 4 per character), plus $0.0005 (Base) or $0.0005 (Solana) per call; up to 4096 characters. Standard OpenAI body (input, voice, response_format, speed). Returns the audio bytes. One endpoint per model: /x402/v1/models/<key>/audio/speech. Rates: https://openai.mm.family/x402/pricing

gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC. OpenAI token rates on Flex (half price, may answer 429; default where offered), Standard (service_tier default) or Fast (fast), plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. One endpoint per model: /x402/v1/models/<key>/chat/completions. Rates: https://openai.mm.family/x402/pricing

OpenAI embeddings (text-embedding-3-large, text-embedding-3-small, text-embedding-ada-002), paid per call in USDC. OpenAI list $0.13 / $0.02 / $0.1 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call. Standard OpenAI body (model, input, dimensions, encoding_format). One endpoint per model: /x402/v1/models/<key>/embeddings. Rates: https://openai.mm.family/x402/pricing

OpenAI image generation (gpt-image-2.5, gpt-image-2, gpt-image-1.5, gpt-image-1, gpt-image-1-mini, chatgpt-image-latest), paid per call in USDC. OpenAI list rates per 1M image tokens (1024x1024 low = 196 tokens on gpt-image-2), plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. One endpoint per model: /x402/v1/models/<key>/images/generations. Rates: https://openai.mm.family/x402/pricing

chat-latest: OpenAI Chat Latest chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 5.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing

chatgpt-image-latest: OpenAI ChatGPT Image Latest image generation, paid per call in USDC. OpenAI list $32 per 1M image tokens (1024x1024: low 272, medium 1056, high 4160 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

gpt-4.1-mini: OpenAI GPT 4.1 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.4/1.6, Fast 0.7/2.8; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-4.1-nano: OpenAI GPT 4.1 Nano chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.1/0.4, Fast 0.2/0.8; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-4.1: OpenAI GPT 4.1 chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 2.0/8.0, Fast 3.5/14.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-4o-mini-tts: OpenAI GPT 4o Mini TTS text to speech, paid per call in USDC. OpenAI list $12 per 1M audio tokens (quoted at 4 per character) plus $0.6 per 1M text tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; up to 4096 characters; accepts instructions. Returns the audio bytes (mp3 by default). Rates: https://openai.mm.family/x402/pricing

gpt-4o-mini: OpenAI GPT 4o Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.15/0.6, Fast 0.25/1.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-4o: OpenAI GPT 4o chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 2.5/10.0, Fast 4.25/17.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5-mini: OpenAI GPT 5 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.125/1.0, Standard 0.25/2.0, Fast 0.45/3.6; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: minimal, low, medium, high (model gpt-5-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5-nano: OpenAI GPT 5 Nano chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.025/0.2, Standard 0.05/0.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: minimal, low, medium, high (model gpt-5-nano:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.1: OpenAI GPT 5.1 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.625/5.0, Standard 1.25/10.0, Fast 2.5/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high (model gpt-5.1:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.2: OpenAI GPT 5.2 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.875/7.0, Standard 1.75/14.0, Fast 3.5/28.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.2:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.4-long: OpenAI GPT 5.4 (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.5/11.25, Standard 5.0/22.5; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.4-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.4-mini: OpenAI GPT 5.4 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.375/2.25, Standard 0.75/4.5, Fast 1.5/9.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.4-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.4-nano: OpenAI GPT 5.4 Nano chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.625, Standard 0.2/1.25; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.4-nano:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.4: OpenAI GPT 5.4 (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.25/7.5, Standard 2.5/15.0, Fast 5.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.4:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.5-long: OpenAI GPT 5.5 (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 5.0/22.5, Standard 10.0/45.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.5-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.5: OpenAI GPT 5.5 (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.5/15.0, Standard 5.0/30.0, Fast 12.5/75.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.5:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.6-luna-long: OpenAI GPT 5.6 Luna (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.2/0.9, Standard 0.4/1.8, Fast 0.8/3.6; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-luna-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.6-luna: OpenAI GPT 5.6 Luna (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.6, Standard 0.2/1.2, Fast 0.4/2.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-luna:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.6-sol-long: OpenAI GPT 5.6 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 4.0/15.0, Standard 8.0/30.0, Fast 16.0/60.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-sol-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.6-sol: OpenAI GPT 5.6 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/10.0, Standard 4.0/20.0, Fast 8.0/40.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-sol:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.6-terra-long: OpenAI GPT 5.6 Terra (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/9.0, Standard 4.0/18.0, Fast 8.0/36.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-terra-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5.6-terra: OpenAI GPT 5.6 Terra (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/6.0, Standard 2.0/12.0, Fast 4.0/24.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-terra:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-5: OpenAI GPT 5 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.625/5.0, Standard 1.25/10.0, Fast 2.5/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: minimal, low, medium, high (model gpt-5:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6-astra-long: OpenAI GPT 6 Astra (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 10.0/37.5, Standard 20.0/75.0, Fast 40.0/150.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6-astra-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6-astra: OpenAI GPT 6 Astra (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 5.0/25.0, Standard 10.0/50.0, Fast 20.0/100.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6-astra:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6-luna-long: OpenAI GPT 6 Luna (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.375, Standard 0.2/0.75, Fast 0.4/1.5; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-luna-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6-luna: OpenAI GPT 6 Luna (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.05/0.25, Standard 0.1/0.5, Fast 0.2/1.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-luna:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6-sol-long: OpenAI GPT 6 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/7.5, Standard 4.0/15.0, Fast 8.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-sol-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6-sol: OpenAI GPT 6 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/5.0, Standard 2.0/10.0, Fast 4.0/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-sol:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-6.1-sol-long: OpenAI GPT 6.1 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/7.5, Standard 4.0/15.0, Fast 8.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6.1-sol-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

OpenAI's newest model. gpt-6.1-sol: OpenAI GPT 6.1 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/5.0, Standard 2.0/10.0, Fast 4.0/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6.1-sol:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

gpt-image-1-mini: OpenAI GPT Image 1 Mini image generation, paid per call in USDC. OpenAI list $18.4 per 1M image tokens (1024x1024: low 272, medium 1056, high 4160 tokens), text in $2 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

gpt-image-1.5: OpenAI GPT Image 1.5 image generation, paid per call in USDC. OpenAI list $32 per 1M image tokens (1024x1024: low 272, medium 1056, high 4160 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

gpt-image-1: OpenAI GPT Image 1 image generation, paid per call in USDC. OpenAI list $40 per 1M image tokens (1024x1024: low 272, medium 1056, high 4160 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

gpt-image-2.5-flare: OpenAI GPT Image 2.5 Flare image generation, paid per call in USDC. OpenAI list $30 per 1M image tokens (1024x1024: low 196, medium 439, high 1756 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

gpt-image-2.5-sunburst: OpenAI GPT Image 2.5 Sunburst image generation, paid per call in USDC. OpenAI list $30 per 1M image tokens (1024x1024: low 196, medium 439, high 1756 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

gpt-image-2: OpenAI GPT Image 2 image generation, paid per call in USDC. OpenAI list $30 per 1M image tokens (1024x1024: low 196, medium 1756, high 7024 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana) per call. Send size and quality (auto is refused); omitted means 1024x1024 medium. Returns b64_json. Rates: https://openai.mm.family/x402/pricing

o1: OpenAI o1 chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 15.0/60.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o1:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

o3-mini: OpenAI o3 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 1.1/4.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o3-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

o3: OpenAI o3 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/4.0, Standard 2.0/8.0, Fast 3.5/14.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o3:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

o4-mini: OpenAI o4 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.55/2.2, Standard 1.1/4.4, Fast 2.0/8.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o4-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing

text-embedding-3-large: OpenAI Text Embedding 3 Large embeddings, paid per call in USDC. OpenAI list $0.13 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call; up to 8192 tokens per input. Standard OpenAI body. Rates: https://openai.mm.family/x402/pricing

text-embedding-3-small: OpenAI Text Embedding 3 Small embeddings, paid per call in USDC. OpenAI list $0.02 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call; up to 8192 tokens per input. Standard OpenAI body. Rates: https://openai.mm.family/x402/pricing

text-embedding-ada-002: OpenAI Text Embedding Ada 002 embeddings, paid per call in USDC. OpenAI list $0.1 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call; up to 8192 tokens per input. Standard OpenAI body. Rates: https://openai.mm.family/x402/pricing