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The latest AI and developer news from Toss, with short summaries.

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Toss Designs Agent Platform for Network-Segmented Environments: Ensuring Task Continuity via bubblewrap Isolation and Session State Persistence

Toss implemented agent task continuity in network-segmented environments using bubblewrap isolation and PV-based state storage.

·2026.11.10 16:00

Toss TASTE Improves Recommendation Performance by 35.1% via Multitask Learning and Demonstrates Transfer Effects to Other Services

Toss TASTE boosted recommendation performance by 35.1% using multitask learning and applied it to other services.

·2026.11.09 15:00

Toss Reduces LLM Costs with Selective Neural Approximation (SNAP)

Toss significantly reduced LLM invocation costs by applying Selective Neural Approximation (SNAP).

·2026.10.27 16:00

PickToss Converts Log Definition Work into AI Skills to Ensure Consistency

Toss converted log definition tasks into AI skills to achieve consistent specification management based on domain context.

·2026.10.23 10:00

PickToss Securities Oracle DB: Average CPU Normal but Commit Delays, NIC Interrupt Socket Concentration Is the Cause

In Toss Securities Oracle DB, repeated commit waits of 0.1 seconds or more despite normal average CPU were caused by NIC interrupts concentrated on one socket, and most of it improved after distributing interrupts across two sockets.

·2026.10.19 12:00

Toss Migrates DW Pipeline to 'Newtown'… Reduces DAG Code by 96% with dbt Adoption

By switching to domain-specific clusters and dbt, the advertising domain's DAG code was reduced from 2,794 lines to 100 lines.

·2026.10.16 15:00

Tossbank Reveals Three Core Standards for Package Development: Stability, Predictability, and Debugging Convenience

Delegates syntax transformation and bundling to the host while preserving original structure and supporting declaration sourcemaps

·2026.10.16 10:00

Toss Bank Switches Internal Package Management to ESM-Only

Support for require(esm) since Node.js 22.12.0 resolves CJS compatibility issues and reduces maintenance overhead

·2026.10.15 18:00

Toss Securities Releases Spark Tenant Operator for Managing Spark Connect Servers

Resolved server replacement and memory leak issues at the tenant level alongside Apache Spark Operator.

·2026.10.14 14:00

Toss Bank Designer Shares Success Story of Financial Product Planning with 'Grow It 31-Day Savings'

Offering a 10% annual interest rate for daily savings of 5,000 KRW, the product has established itself as an entry-level option for savings and deposits.

·2026.10.13 22:00

Toss Reveals AI Platform Architecture to Streamline Service Development

Automated model invocation, security, and cost management through the GenAI Portal and Gateway.

·2026.10.13 10:00

Toss Securities Improves Search Throughput by 41% with Milvus NUMA Placement Optimization

Performance improved on the same resources by reducing the remote DRAM access ratio from 50% to 0.8%.

·2026.10.12 10:00

Toss Improves CVR by 7.55% by Optimizing Recommendation TopK with Integer Programming

Reducing the number of candidates by half increased orders per user by 10.13% while decreasing CTR by 3.71%

·2026.10.01 10:00

Toss Bank Reveals 9 Squirrel Characters and UI Design for AI-Powered 'Grow-it Savings'

AI generated 101 drafts, which were refined to finalize 9 character designs.

·2026.09.30 10:00

PickToss Bank Saves 300 Hours Annually with AI Consultation

Toss Bank introduced AI consultation for jeonse loans, saving 300 hours of consultation time annually.

·2026.09.23 15:00

Toss Bank Boosts CTR and CVR 3x by Introducing 'Floating Card' for Asset Management Reports

Toss Bank separated its asset management report into a floating card, improving click-through and conversion rates by 3x.

·2026.09.22 17:00

PickToss Doctor V2 Released: Maximizing QA Efficiency with LLM-based Automated Testing and Self-healing

Toss Doctor V2 combines LLMs and Appium MCP to automate everything from test code generation to failure recovery, extending to regression testing via Toss Checker.

·2026.09.22 12:00

Toss Bank Shifts International Remittance Benchmark from 'Fees' to 'Reducing Anxiety'

A Toss Bank designer shared how user interviews and firsthand experience shifted the team's core value for international remittances from 'low fees' to 'alleviating anxiety'.

·2026.09.21 19:00

Toss Bank Reveals Design Philosophy Behind 'Locked Piggy Bank' for Teen Savings

Toss Bank has unveiled the UX principles behind its 'Locked Piggy Bank,' designed to curb impulsive spending among teenagers.

·2026.09.18 12:00

PickToss Builds 'Toss Benchmark' to Bridge Gap Between Public Leaderboards and Real-World Performance

Toss analyzed the discrepancy between public benchmarks and actual service performance, establishing Toss Benchmark as a domain-specific evaluation standard.

·2026.09.16 14:00