LLM AI tools with API

Mistral AI offers developers a platform for building cutting-edge generative AI models with a focus on performance and customization. Their models excel in reasoning tasks and benchmarks, providing flexible deployment options across infrastructures.

Portkey is an LLMOps platform offering a unified API and model catalog with observability, guardrails, RBAC, audit logs, prompt management, caching, routing and PII redaction to simplify multi-model integration, governance, monitoring, and cost optimization.

Omlx is a local LLM inference server for Apple Silicon with a menu bar app and web dashboard, delivering high-performance generation via continuous batching and SSD-cached key-value storage. It serves multiple model types (LLMs, VLMs, embeddings, rerankers) with OpenAI/Anthropic-compatible APIs for drop-in integration with tools like Claude Code, OpenClaw, and Cursor.

Abliteration.ai is an unrestricted AI API and enterprise policy gateway that enforces per-request policy-as-code with allow, refuse, rewrite, redact, and escalate outcomes. It streams audit logs to observability platforms, supports OpenAI/Anthropic-compatible endpoints, and includes a sandboxed lab and training-data generation for security research and fine-tuning.

Opper is a unified AI gateway and agent control plane that routes requests across 200+ models and modalities, offering centralized model routing, automated fallbacks, budget caps, LLM observability, a multi-provider testing playground, OpenAI-compatible SDK, and enterprise privacy/compliance controls.

FreeLLMAPI provides a single OpenAI-compatible API and self-hosted router that consolidates hundreds of LLMs from multiple providers, offering a live searchable catalog, real-time free-token quotas, multimodal/tool-enabled model options, and centralized routing.

Wafer AI is a serverless inference platform that lets you run open-source LLMs in production with OpenAI-compatible APIs. It offers dedicated endpoints with optimized performance, long-context support, and caching to reduce costs for coding, reasoning, and agent workloads.

Pioneer automates retraining and deployment of open-source models, using live inference data for fine-tuning and one-shot adaptation. It manages adaptive inference, routing, RAG pipelines, agent workflows, synthetic data generation, monitoring, and automated checkpoint promotion.

LangWatch enables real‑time testing of LLM agents, offering simulation, prompt management, audit trails, and batch testing across models. It integrates with OpenTelemetry, LangChain, LangGraph, and supports self‑hosted, cloud, and role‑based access.

Alli is an enterprise AI platform that automates workflows by converting proprietary data into actionable insights. It uses Retrieval Augmented Generation, natural‑language queries, real‑time feedback, and a no‑code agent builder for secure, customizable AI solutions across finance, manufacturing, and healthcare.

HoneyHive delivers AI observability and evaluation for production agents, offering OpenTelemetry tracing across 100+ LLMs, live metrics on quality, safety, latency, cost, drift alerts, offline experimentation, expert annotation, CI/CD integration, and enterprise security.

Rival is an AI model comparison platform that allows users to analyze and compare various AI models based on performance metrics and capabilities, facilitating informed decisions for developers and businesses in selecting tailored AI solutions.

Anomalo automates data quality across structured, semi‑structured, and unstructured data in cloud lakes and warehouses. Using unsupervised ML, it detects anomalies, validates completeness, enforces governance without code, and offers lineage mapping and KPI tracking.

Athina lets teams build, test, and monitor AI features via a prompt editor and flow builder for any model. It offers dataset comparison, SQL queries, evaluation suites, human QA, code execution, observability, self‑hosted deployment, SOC‑2 compliance, and cloud integrations.

Agent Arena is an AI agent competition platform for developers and researchers hosting live head-to-head and time-limited campaigns where agents are submitted, tested and benchmarked with public leaderboards, integrated LLM/framework support, varied game formats and reproducible match logs.

Tokenomy is an AI token intelligence platform that offers a token calculator, real-time usage monitoring, and analytical tools. It helps manage token costs, assess GPU memory needs, and evaluate energy consumption for efficient AI model performance.

NailedIt.ai lets users compare up to 15 AI models—text, image, and video—by sending a single prompt and displaying side‑by‑side results. Users can use personal API keys, cutting costs and streamlining evaluation for developers, writers, marketers, and researchers.

Plat.AI is a real‑time decision‑making engine that auto‑builds, deploys, and updates ML models without code. It offers automated preprocessing, one‑click deployment, API integration, and dashboards for performance monitoring and regulatory compliance across finance, insurance, marketing and more.

Otari is an open-source AI gateway and control plane that unifies access to 40+ LLM providers via a single endpoint, offering per-workspace routing, automatic failover, budget and token enforcement, centralized API key management, audit trails, and SDKs.

Awan LLM offers unlimited token generation with Meta Llama 3.1 8B and 70B models, no censorship or caps, supporting persistent AI assistance, autonomous agents, roleplay, data processing, and code completion, hosted on owned GPUs for continuous use.

Omnichat is a multimodal LLM API that enables autonomous applications by integrating various AI capabilities. It enhances automation, customer service, and workflow management with human-like reasoning for better context comprehension and decision-making.

LLM-answer-engine is an advanced answer engine leveraging Groq, Mixtral, Langchain.JS, Brave Search, Serper API, and OpenAI to provide sources, answers, images, videos, and follow-up questions efficiently. It offers an opensource Perplexity alternative.

EvalsOne is an evaluation platform for developers and researchers to assess LLM prompts, RAG, and agents using rule‑based or LLM‑based methods, human judgment, and customizable evaluators. It supports multiple APIs and integrates with major AI frameworks.

Page Assist is a Chrome extension that connects to locally running AI models via a sidebar, enabling vision, document chat, and internet search. It supports PDFs, CSVs, markdown, Word, memory context, 14 languages, and keeps all data local.

The text-generation-webui is a Gradio-based web UI for Large Language Models, supporting various backends and multiple interface modes. It allows quick model switching, extension integration, and dynamic LoRA loading for custom training.

Mistral.rs is an efficient, versatile tool for high-speed large language model (LLM) inference, offering multi-device support and extensive quantization options for seamless deployment on diverse hardware setups.

Tila is a multi-agent AI platform with a visual infinite canvas to connect LLMs and creative tools for multimodal workflow automation. Convert and generate text, images, audio, and video, automate sequences, integrate APIs, and build reusable templates.

ODS is an on-premises AI server for PC, Mac, and Linux offering local LLM inference, model management, agents, chat/voice UI, RAG with local document search, image pipelines, integrations (Ollama, ComfyUI, n8n), and operational tooling for private deployments.