Compare LLM API pricing across providers and models
Affordable AI API gateway for frontier models at up to 89% below official pricing
Stage
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Founded
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Based in
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Pricing model
Free
Paid
Pricing
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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
Key features
Compare pricing across 234 LLM providers
View input, output and cached token pricing
Track 628 LLM models
Access source-linked pricing information
Calculate monthly API budget
View pricing by context window
Filter by popular models
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
What makes it different
All pricing sourced with transparent links to original provider pages
Covers 9,593 pricing offers across models and providers
Separates input, output and cache-read pricing
Includes context window metadata for each model
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
TokenPricing
AtmoRouter