The Payment Landscape

Aug 17, 2012 • 1 min de lectura

I’ve been having a lot of discussions lately around the current payment landscape, and I’m slowly getting better at explaining the trade offs between the different options.

I drew something like this comparison matrix on the whiteboard the other day, and I think it sums it up nicely. Bitcoin is the only option which marks a yes in all three categories: fast, cheap, and international.

It’s also the only one that marks a yes in just the first two categories: fast and cheap.

What do you think? Did I miss anything or how could it be improved?

Historias recientes

Part 3/3 Owning Intelligence Series: How Coinbase Built, Evaluated, and Post-Trained a Fraud Agent

Yao Ma, Xuwei Tan, Akshit Trehan, Aman Choudhary, Anyscale Team: Eric Tang, Sumanth Hegde, Seiji Eicher, Jess Kong

Oct 8, 2026

TL;DR: Using SkyRL on Anyscale, we post-trained Qwen3.5-9B for Onramp fraud detection and served it with Ray Serve LLM and vLLM. On our benchmark, it exceeded Opus 4.5 across all four detection metrics, including 9.6% higher F1. In online inference, we reduced end to end latency by 55%.

Engineering

Part 2/3 Owning Intelligence Series: How Coinbase Built, Evaluated, and Post-Trained a Fraud Agent

Yao Ma, Xuwei Tan

Oct 7, 2026

TL;DR: Newer LLMs are not necessarily better at domain-specific tasks. On our fraud benchmark, newer Opus, Sonnet, and GPT versions all had lower recall, F1, and dollar-weighted recall—even when precision improved. The lesson: choose models using high-quality, domain-specific benchmarks, with reproducible evaluation and ideally deterministic scoring against verified outcomes. These findings also motivated our next step: post-training open-weight models for greater control over quality, cost, and deployment.

Engineering

Migrating 300+ namespaces from self-hosted Temporal to Temporal Cloud

Ian Yap

Oct 1, 2026

TL;DR: We moved more than 300 Temporal namespaces, across more than 300 services, from a cluster we ran ourselves onto Temporal Cloud. You cannot finish the move by repointing services at Temporal Cloud while workflows are still running on the old one. Where teams could pause new work, we waited for in-flight runs to finish and then switched; for trading, payments, and long-running work, we ran the old cluster and Temporal Cloud, and moved new workflows over in steps, with rollback as a config change. Private connectivity, per-namespace service allowlists, and encrypted payloads were in place before the first production namespace moved.

Engineering

Descargo de responsabilidad: Coinbase Financial Services Europe Ltd. ofrece el comercio de derivados a través de la plataforma Coinbase Advanced a clientes elegibles del EEE. (Licencia CySEC 374/19). Para acceder a los derivados, los clientes deberán pasar por nuestras verificaciones de evaluación estándar para determinar su elegibilidad e idoneidad para este producto.

The Payment Landscape

Historias recientes

Part 3/3 Owning Intelligence Series: How Coinbase Built, Evaluated, and Post-Trained a Fraud Agent

Coinbase and Samsung Bring USDC to Samsung Wallet

Part 2/3 Owning Intelligence Series: How Coinbase Built, Evaluated, and Post-Trained a Fraud Agent

Coinbase está construyendo la plataforma de trading más completa

Part 1/3 Owning Intelligence Series: How Coinbase Built, Evaluated, and Post-Trained a Fraud Agent

Migrating 300+ namespaces from self-hosted Temporal to Temporal Cloud