Affordable AI API gateway for frontier models at up to 89% below official pricing
Open-source price index for GPU compute updated every 15 minutes
Stage
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Founded
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Based in
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Pricing model
Paid
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Pricing
Pay per million tokens in USD with no subscription or minimum spend. Prices vary by model and provider. Example flagship models: Claude (from $5.9/$29.5 input/output per million tokens), GPT-6-Astra (from $0.175/$0.875), Claude Opus (from $0.0125/$0.0625). Prompt caching at 10% of input rate where s
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Key features
OpenAI-compatible endpoint
Access to 171 frontier models
Automatic failover across upstream providers
Per-token billing from upstream usage reports
Full SSE streaming passthrough
Per-key rate limits and model allowlists
Complete usage logs with cost breakdown
Anthropic Messages API support
Prompt caching at 10% of input rate
Health tracking per provider family
Open-source repository with collector and calculation code
MCP interface for autonomous agents, anonymous and read-only
Covers H100, H200, B200, and B300 GPU models
Fully transparent methodology with published parameters
Verifiable and reproducible calculations from public record
What makes it different
Single API key for 171 models across 19 families with no per-provider signups
Up to 89% savings below official pricing on frontier models
Automatic failover ensures requests route around capacity outages
Pay only for tokens consumed with no monthly subscription or minimum spend
Exact billing metered from upstream usage, never estimated from characters
First open-source price index for GPU compute with fully transparent methodology
Data, method, and code are all public and verifiable
Resistant to manipulation and outliers through interquantile mean voting
Fault-tolerant design that maintains integrity when sources fail or vanish
Updated every 15 minutes with real-time data from published on-demand rates
AtmoRouter
Computable