LIVE
ANTHROPICOpus 4.7 benchmarks published2m ago
CLAUDEOK142ms
OPUS 4.7$15 / $75per Mtok
CHATGPTOK89ms
HACKERNEWSWhy has not AI improved design quality the way it improved dev speed?14m ago
MMLU-PROleader Opus 4.788.4
GEMINIDEGRADED312ms
MISTRALMistral Medium 3 released6m ago
GPT-4o$5 / $15per Mtok
ARXIVCompositional reasoning in LRMs22m ago
BEDROCKOK178ms
GEMINI 2.5$3.50 / $10.50per Mtok
THE VERGEFrontier Model Forum expansion announced38m ago
SWE-BENCHleader Claude Opus 4.772.1%
MISTRALOK104ms
ANTHROPICOpus 4.7 benchmarks published2m ago
CLAUDEOK142ms
OPUS 4.7$15 / $75per Mtok
CHATGPTOK89ms
HACKERNEWSWhy has not AI improved design quality the way it improved dev speed?14m ago
MMLU-PROleader Opus 4.788.4
GEMINIDEGRADED312ms
MISTRALMistral Medium 3 released6m ago
GPT-4o$5 / $15per Mtok
ARXIVCompositional reasoning in LRMs22m ago
BEDROCKOK178ms
GEMINI 2.5$3.50 / $10.50per Mtok
THE VERGEFrontier Model Forum expansion announced38m ago
SWE-BENCHleader Claude Opus 4.772.1%
MISTRALOK104ms

Agent Glossary

Concise definitions for the agent payment ecosystem. Standards, implementations, and the practical implications. Each entry is intentionally one read; if it is doing its job you do not need a second pass.

x402

Open HTTP standard for machine-payable APIs. Servers return 402 Payment Required with payment instructions; clients retry with proof of payment. The internet-native payment rail for AI agents.

MCP (Model Context Protocol)

Open standard for exposing tools, resources, and prompts to AI agents. Built by Anthropic. Adopted by Claude Desktop, Claude Code, and a growing ecosystem.

Agent Payments

The pattern: pay-per-call APIs settled in stablecoins, no signup forms, no credit cards, no human in the loop. Built on x402 and MCP.

Looking for the implementation rather than the definition? See /for-ai-agents for discovery surfaces and integration paths, or /developers/agent-payments for the full payment flow with code examples.