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modelprices.xyz – Cheapest LLM Leaderboard (Overall)
x402
modelprices.xyz – Cheapest LLM Leaderboard (Overall) is a paid API for AI agents from modelprices.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns the 50 lowest-cost AI models across 70+ providers, ranked by inference cost per token, including input, output, cache, and batch pricing in USD per 1M tokens.
Price / call$0.01
Success—
StatusUnknown
How this service works
Cheapest LLM leaderboard: the 50 lowest-cost AI models available anywhere right now, ranked by inference cost per token across 70+ providers (OpenAI, Anthropic, Google, Meta, xAI, Mistral, DeepSeek). Input, output, cache and batch USD per 1M tokens, with context window and capability flags joined in. The one call that answers 'what is the cheapest model I can use?' Refreshed hourly.
Output
A ranked list of up to 50 AI models ordered by lowest inference cost, each entry including the model name, provider, input price (USD per 1M tokens), output price (USD per 1M tokens), cache price, batch price, context window size, and capability flags. Data is refreshed hourly.
Example use cases
Cost-optimized model selection for startup
“I'm building a high-volume chatbot and need to keep costs down — can you pull the cheapest LLM leaderboard and tell me which models I should consider for inference at scale?”
Budget tracking for AI spending
“We're reviewing our AI infrastructure costs — can you fetch the current cheapest model rankings across all providers so I can see if we're using the most cost-efficient option available?”
Quick price comparison before provider switch
“Before I switch providers, can you get me the latest list of the 50 cheapest LLMs across OpenAI, Anthropic, Google, and the others so I can compare what we'd save?”
Technical details
Endpoint
GEThttps://modelprices.xyz/llm/cheapest/overallWhen to prefer
Choose this endpoint when you need a single, broad, unconstrained view of the cheapest AI models across all providers and modalities — no filtering by context window, vision support, or tool use required. For filtered queries (e.g. cheapest vision model, cheapest long-context model), use the sibling leaderboard endpoints instead. This is the fastest way to answer 'what is the absolute cheapest model available right now?'
Side effects
- Service temporarily unavailable (5xx) if the pricing data pipeline is down
- Stale data if the hourly refresh has failed (data may be up to 2 hours old)
- Empty or partial results if upstream provider pricing APIs are unreachable
- Payment failure (402) if the $0.01 USDC x402 payment is not correctly submitted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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