The request names OpenAI's GPT-5.4 Mini, so the answer is about that model. It is offered through OpenAI's own platform 2 and is not clearly listed by name in the other sources. Among the alternatives, Replicate hosts OpenAI-family models via its cloud API 1, and LiteLLM provides a single OpenAI-compatible gateway to 140+ providers and 1,892 models 9.
- 1
OpenAI APIopenai.comverified and signed
OpenAI's official platform, offering its models including GPT-5.4 Mini through the OpenAI API, SDK and library 2.
official:MCP server · mcp-extensionsAPI · OpenAI APISDK · openailibrary · OpenAICLI · openai-whisper+177 community tools built for it
for agents: ChatGPT · gpt-5-4-prompting · OpenAI
- 2
Replicatereplicate.comverified and signed
Runs OpenAI models such as gpt-4o-mini and gpt-5-mini through a cloud API with a single run call 1.
+14 community tools built for it
for agents: openai/gpt-4o-mini · openai/gpt-4.1-mini · openai/gpt-5-mini
- 3
- 4
LangChainlangchain.comverified and signed
An open agent engineering platform for building agents with a choice of model, usable to call OpenAI models 5.
+163 community tools built for it
for agents: langchain · langchain · llm
Sources
- 1Replicate - Run AI with an APIreplicate.com · read 2026-10-29
- 2Openaiopenai.com ·
- 5LangChain: the open agent platform to own your intelligencelangchain.com · read 2026-10-29
- 9LiteLLM — Open-Source AI Gateway & LLM Proxylitellm.ai · read 2026-10-29
For agents: the 10 actions behind this answer
openai/gpt-4o-mini · openai/gpt-4o-mini verified and signed
Low latency, low cost version of OpenAI's GPT-4o model
ChatGPT · OpenAI verified and signed
aspnet-minimal-api-openapi · aspnet-minimal-api-openapi verified and signed
Create ASP.NET Minimal API endpoints with proper OpenAPI documentation
azure-ai · azure-ai verified and signed
Use for Azure AI: Search, Speech, OpenAI, Document Intelligence. Helps with search, vector/hybrid search, speech-to-text, text-to-speech, transcription, OCR. WHEN: AI Search, query search, vector search, hybrid search, semantic search, speech-to-text, text-to-speech, transcribe, OCR, convert text to
langchain · Docs by LangChain verified and signed
Use when building AI agents, integrating language models with
· Ollama website read, tools not yet checked
Ollama is the easiest way to run and build with open AI models locally or in the cloud on macOS, Windows, and Linux.
add · gpt-rag-mcp found in code, not yet checked
ai-search-instance-chat-completion · Cloudflare API verified and signed
Chat Completions
shell · shin-watcher-oss found in code, not yet checked
Run a shell command in the cloned BerriAI/litellm working tree. Use this for git, uv, curl, ls, cat, pytest, etc.
nlp · mini-swe-agent verified and signed
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.