BAI Limited Free LLM Models & Developer API Access

Overview

BAI (b.ai) is an AI agent economic and API infrastructure platform designed to bridge large language models with autonomous agent workflows. As part of its ecosystem rollout, BAI provides Limited Free access to several high-performance foundation and flash models, allowing developers and autonomous agents to integrate and experiment with cutting-edge reasoning and chat pipelines without upfront costs.

Free Models Available

Users and developers can access the following models under BAI's limited free tier:

• Hy3: High-throughput conversational and reasoning model.
• Mimo2.5: Optimized multi-modal and fast instruction-following model.
• GLM 5.3 Flash: Ultra-low-latency model built for rapid agent loops, tool calling, and workflow execution.
• Qwen3.8 Flash: Highly efficient, multi-lingual flash model suitable for real-time coding, text processing, and agent orchestration.

Platform Capabilities & Integration

• Unified Multi-Model Routing: Connect to diverse AI model families through a single, unified API standard compatible with leading agent frameworks.
• Developer Tooling & Protocols: Native support for Model Context Protocol (MCP Server), BAIclaw / Openclaw integrations, and x402 payment protocols.
• Privacy-First & Autonomous Workflows: Designed for permissionless LLM access and agent-to-agent (A2A) micro-settlements, catering to automated tasks and interactive user applications.
• Promotions: BAI's Promotions page lists limited-time discounts, for example Qwen3.8-Flash at 30% and GLM-5.3-Flash at 70% of the standard price (from Sep 25 and Oct 4, 2026), and DeepSeek-V4.1-Flash at 60%.

How to Claim

1. Navigate to the official BAI platform at b.ai.
2. Launch the web console or direct developer portal via TRY BAI.
3. Select any of the free designated models (Hy3, Mimo2.5, GLM 5.3 Flash, Qwen3.8 Flash) directly in the Chat interface or configure them in your API client using your BAI API key.