One Endpoint for
Fast & Reasoning AI
One resilient OpenAI-compatible API key routing to top-tier reasoning, coding, and fast inference models. Start free with generous daily limits or unlock unrestricted high-throughput access on Pro.
Free tier to build and test against (200 req/day) · Pro $10/month · Ultra $15/month with double the limits — seats are limited
Unified Frontier Intelligence
Stop juggling separate subscriptions and API keys. Reach fast chat, code and deep-reasoning models behind one reliable endpoint.
Deep Reasoning
Advanced multi-step reasoning, architectural planning, and deep logic analysis without per-token billing anxiety.
Code Generation
Ultra-fast code generation, refactoring, and agentic tool calling optimized for VS Code, Cursor, and OpenCode.
Fast Inference
Sub-second completions and real-time streaming for high-speed UI workflows and rapid conversational chat.
Open-Weight Models
Comprehensive open-weights ecosystem support with automated failover and zero local configuration hassle.
How Budget AI keeps it cheap
No mystery to it. We source capacity from the free and low cost tiers that AI providers publish, then do the work that makes that capacity actually usable in production.
We source
Capacity comes from the free and low cost tiers published by several AI providers, pooled together rather than leaning on any one of them.
We optimise
Every request is routed to the provider most likely to answer it fast. We track each provider's rate limit in real time and skip one that is saturated before it can reject you.
We simplify delivery
One OpenAI compatible endpoint, one key, one bill. Rate limited or down providers are failed over transparently, so your code never has to know it happened.
Stop Paying Per-Token Markups
See how much you save each month by routing your workload through Budget AI.
Predictable, Honest Tiers
Start free with daily limits. Upgrade to Pro when you need unlimited access and deep reasoning power.
- Free model tier (
budget-ai-free-v1) - 10 requests per minute
- 200 requests per day
- Multi-provider failover routing
- Full streaming SSE support
- Reasoning tier
- Unrestricted daily quota
- Fast + Reasoning model tiers
- 240 requests per minute
- 25,000 requests per day
- Up to 4,096 tokens per response
- Priority model failover routing
- Full streaming SSE support
- High-throughput concurrency
- Priority developer support
- Every model tier, including Reasoning
- 480 requests per minute
- 60,000 requests per day
- Up to 8,192 tokens per response
- Priority model failover routing
- Strictly limited seats
- Priority developer support