{"uid":"cap_4UqLjaW8QHzuhMLlsZw8z","slug":"x402engine-mimo-v2-6-pro-llm-api-2f2f9955","name":"x402engine MiMo-V2.6-Pro LLM API","description":"x402engine — MiMo-V2.6-Pro is the flagship foundation model developed by Xiaomi. Built at a scale of over 1T parameters, it is designed to push the ceiling of capability for the most demanding...","url":"https://x402engine.app/api/llm/mimo-v2.6-pro?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","bodyType","body","method"],"properties":{"body":{"type":"object","required":["messages"],"properties":{"seed":{"type":"integer","description":"Model-supported seed; see /docs/llm-capabilities.md."},"stop":{"oneOf":[{"type":"string"},{"type":"array","items":{"type":"string"},"maxItems":4}],"description":"Model-supported stop; see /docs/llm-capabilities.md."},"min_p":{"type":"number","description":"Model-supported min_p; see /docs/llm-capabilities.md."},"tools":{"type":"array","items":{"type":"object","required":["function"],"properties":{"type":{"enum":["function"],"type":"string"},"function":{"type":"object","properties":{"name":{"type":"string"},"strict":{"type":"boolean"},"parameters":{"type":"object"},"description":{"type":"string"}}}}},"description":"Client-executed function definitions; return results using role=tool and tool_call_id."},"top_k":{"type":"integer","description":"Model-supported top_k; see /docs/llm-capabilities.md."},"top_p":{"type":"number","description":"Model-supported top_p; see /docs/llm-capabilities.md."},"stream":{"type":"boolean","description":"Return live OpenAI-compatible SSE after payment settlement."},"messages":{"type":"array","items":{"type":"object","anyOf":[{"required":["content"]},{"required":["tool_calls"]}],"required":["role"],"properties":{"name":{"type":"string"},"role":{"enum":["system","developer","user","assistant","tool"],"type":"string"},"content":{"oneOf":[{"type":"string"},{"type":"null"},{"type":"array","items":{"type":"object","required":["type"],"properties":{"type":{"enum":["text","image_url","video_url","input_audio"],"type":"string"}},"additionalProperties":true},"maxItems":100,"minItems":1}]},"refusal":{"type":["string","null"]},"reasoning":{"type":"string"},"tool_calls":{"type":"array","items":{"type":"object"}},"annotations":{"type":"array","items":{"type":"object"}},"tool_call_id":{"type":"string"},"cache_control":{"type":"object"},"reasoning_details":{"type":"array","items":{"type":"object"}}},"additionalProperties":false},"maxItems":100,"minItems":1,"description":"Text or model-supported multimodal messages; assistant tool calls may have null content"},"reasoning":{"type":"object","description":"Model-supported reasoning; see /docs/llm-capabilities.md."},"logit_bias":{"type":"object","description":"Model-supported logit_bias; see /docs/llm-capabilities.md."},"max_tokens":{"type":"integer","example":1024,"description":"Total output budget, including reasoning. Use this or max_completion_tokens."},"temperature":{"type":"number","description":"Model-supported temperature; see /docs/llm-capabilities.md."},"tool_choice":{"oneOf":[{"enum":["auto","none","required"],"type":"string"},{"type":"object"}],"description":"Model-supported tool_choice; see /docs/llm-capabilities.md."},"stream_options":{"type":"object","description":"Optional include_usage boolean; usage is always requested upstream."},"response_format":{"type":"object","description":"Model-supported response_format; see /docs/llm-capabilities.md."},"presence_penalty":{"type":"number","description":"Model-supported presence_penalty; see /docs/llm-capabilities.md."},"frequency_penalty":{"type":"number","description":"Model-supported frequency_penalty; see /docs/llm-capabilities.md."},"include_reasoning":{"type":"boolean","description":"Model-supported include_reasoning; see /docs/llm-capabilities.md."},"repetition_penalty":{"type":"number","description":"Model-supported repetition_penalty; see /docs/llm-capabilities.md."},"max_completion_tokens":{"type":"integer","description":"Alias for total output budget; bounded by model maxOutputTokens."}},"additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["choices","content"],"properties":{"model":{"type":"string"},"usage":{"type":"object","description":"Provider token and usage accounting, when returned."},"choices":{"type":"array","items":{"type":"object","properties":{"index":{"type":"integer"},"message":{"type":"object","properties":{"role":{"type":"string"},"content":{"type":["string","null"]},"tool_calls":{"type":"array","items":{"type":"object"}}}},"finish_reason":{"type":["string","null"]}}}},"content":{"type":"string","description":"Convenience copy of the first assistant message's text."}}}}}}},"responseSchema":{"type":"json","example":{"model":"xiaomi/mimo-v2.6-pro","choices":[{"index":0,"message":{"role":"assistant","content":"Hello!"},"finish_reason":"stop"}],"content":"Hello!"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004413","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.004413/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004413","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004413","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3hg1i42NRyq8A-GweYnXk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004413","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs inference on Xiaomi's MiMo-V2.6-Pro 1T+ parameter foundation model via pay-per-call micropayments","exampleAgentPrompt":"Ask MiMo-V2.6-Pro to reason through this multi-step math problem step by step: 'A train leaves Chicago at 9am traveling at 80mph toward New York (790 miles away). Another train leaves New York at 11am at 100mph. At what time and location do they meet?' Stream the response back to me.","exampleUseCases":[{"title":"Complex reasoning task offload","prompt":"Use Xiaomi's MiMo model to reason through this logic puzzle and show its work step by step: 'If all bloops are razzies, and all razzies are lazzies, are all bloops definitely lazzies? Explain why.'"},{"title":"Agentic tool-calling workflow","prompt":"I need you to call MiMo-V2.6-Pro with a function definition for 'get_weather(city: string)' and ask it to retrieve the weather for Tokyo — I'll handle the actual function execution and feed the result back."},{"title":"Drafting long-form technical content","prompt":"Have MiMo-V2.6-Pro write a detailed technical blog post about the differences between transformer attention mechanisms and state space models, targeting an audience of ML engineers, around 800 words."}],"resultDescription":"Returns an OpenAI-compatible JSON response containing the model name ('xiaomi/mimo-v2.6-pro'), a choices array with the assistant message (role, content, tool_calls if any), a finish_reason ('stop', 'tool_calls', etc.), and a top-level content field. Streaming mode returns SSE events in OpenAI format.","failureModes":["Payment not settled — 402 response if USDC micropayment fails","Invalid messages format — 422 validation error if required 'messages' array is missing or malformed","Unsupported parameter values — model may ignore or error on out-of-range top_p/top_k/min_p values","Context length exceeded — very long message arrays may be truncated or rejected","Streaming not available — SSE may fail if payment settlement hasn't completed before stream starts","Tool call format errors — malformed function definitions cause schema validation failures"],"whenToPreferThis":"Choose this endpoint when you need a very large (1T+ parameter) frontier model for demanding reasoning, coding, or long-context tasks and want pay-per-call pricing without a monthly subscription. Prefer MiMo-V2.6-Pro specifically when working with Xiaomi's model ecosystem or when benchmarks show it outperforms other available models for your task. Use x402engine's version when you want OpenAI-compatible function calling and streaming with USDC micropayment settlement via x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T18:41:37.044Z","isFirstParty":false,"canonicalSlug":"x402engine-mimo-v2-6-pro-llm-api-2f2f9955"}