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News

MarkTechPost
marktechpost.com > 07/25/2026 > sakana-ai-releases-fugu-cyber-orchestration-model-cybergym-cti-realm

Sakana AI Releases Fugu-Cyber: An Orchestration Model Reporting 86.9% on CyberGym and 72.1% on CTI-REALM

1+ hour, 7+ min ago   (367+ words) Sakana AI has released Fugu-Cyber (model ID is fugu-cyber-v1.0), a cybersecurity-specialized addition to its Fugu orchestration family. It is not just a new frontier model. It is a third endpoint on the Fugu orchestrator, tuned for security reasoning. Sakana launched…...

MarkTechPost
marktechpost.com > 07/25/2026 > why-the-openai-agent-broke-into-hugging-face-reward-hacking-not-malice-explained-for-engineers

Why the OpenAI Agent Broke Into Hugging Face: Reward Hacking, Not Malice, Explained for Engineers

15+ hour, 58+ min ago   (967+ words) On July 21, 2026, OpenAI disclosed that its own models breached Hugging Face’s production infrastructure. The models were not attacking a target. They were sitting an exam. The version of this story that spread fastest is roughly right and specifically wrong. The…...

MarkTechPost
marktechpost.com > 07/22/2026 > anthropic-releases-claude-security-plugin-for-claude-code-in-beta-a-multi-agent-vulnerability-scanner-that-runs-in-your-terminal

Anthropic Releases Claude Security Plugin for Claude Code in Beta: A Multi-Agent Vulnerability Scanner That Runs in Your Terminal

2+ day, 19+ hour ago   (501+ words) The plugin adds a single command, /claude-security, which opens a menu of three jobs, per the official documentation: Installation is two commands from the official Anthropic marketplace: The scan is implemented as a dynamic workflow — a JavaScript orchestration script that…...

MarkTechPost
marktechpost.com > 07/21/2026 > cisco-foundation-ai-releases-antares-350m-and-1b-open-weight-models-that-localize-known-vulnerabilities-inside-real-codebases

Cisco Foundation AI Releases Antares: 350M and 1B Open-Weight Models That Localize Known Vulnerabilities Inside Real Codebases

3+ day, 18+ hour ago   (763+ words) Cisco Foundation AI has released Antares, a family of security small language models (SLMs) built for one narrow security task. The task is vulnerability localization. Given a vulnerability description and a repository, find the files containing the flaw. Two models…...

MarkTechPost
marktechpost.com > 07/16/2026 > openai-details-gpt-red-an-internal-automated-red-teaming-model-that-beat-human-red-teamers-84-to-13-on-prompt-injection

OpenAI Details GPT-Red: An Internal Automated Red-Teaming Model That Beat Human Red-Teamers 84% To 13% On Prompt Injection

1+ week, 2+ day ago   (650+ words) This week, OpenAI published details of GPT-Red, an internal-only automated red-teaming model. Its job is to attack OpenAI’s own models and find prompt injection vulnerabilities. OpenAI gives two reasons. Human red-teaming is time-intensive and does not scale. Commonly used robustness…...

MarkTechPost
marktechpost.com > 06/26/2026 > cursor-study-finds-reward-hacking-inflates-coding-agent-benchmark-scores-on-swe-bench-pro

Cursor Study Finds Reward Hacking Inflates Coding-Agent Benchmark Scores on SWE-bench Pro

4+ week, 1+ day ago   (645+ words) A new Cursor study reports that newer coding agents often retrieve known fixes instead of deriving them, inflating popular benchmark scores. Reward hacking means a model earns the reward without doing the intended work. Here the reward is a passing…...

MarkTechPost
marktechpost.com > 06/20/2026 > yandex-open-sources-yaff-a-zero-copy-wire-format-for-protobuf-with-near-struct-read-speed

Yandex Open-Sources YaFF: A Zero-Copy Wire Format for Protobuf With Near-Struct Read Speed

1+ mon, 5+ day ago   (589+ words) Asif Razzaq is the CEO of Marktechpost Media Inc.. As a visionary entrepreneur and engineer, Asif is committed to harnessing the potential of Artificial Intelligence for social good. His most recent endeavor is the launch of an Artificial Intelligence Media…...

MarkTechPost
marktechpost.com > 06/13/2026 > anthropic-disables-claude-fable-5-and-mythos-5-after-us-government-order

Anthropic Disables Claude Fable 5 and Mythos 5 After US Government Order

1+ mon, 1+ week ago   (689+ words) Anthropic has disabled its two most capable models for every customer. The shutdown followed a US government export control directive. The order arrived on June 12, 2026. It named Claude Fable 5 and Claude Mythos 5 specifically. Both models had launched only three days…...

MarkTechPost
marktechpost.com > 06/10/2026 > anthropic-releases-claude-fable-5-and-claude-mythos-5-same-underlying-model-different-safeguards-new-mythos-class-tier

Anthropic Releases Claude Fable 5 and Claude Mythos 5: Same Underlying Model, Different Safeguards, New Mythos-Class Tier

1+ mon, 2+ week ago   (871+ words) Anthropic released two models on June 9, 2026: Claude Fable 5 and Claude Mythos 5. Both belong to a tier called “Mythos-class.” This tier sits above the Opus class in capability. Fable 5 is the version claimed to be made safe for general use. Mythos…...

MarkTechPost
marktechpost.com > 05/25/2026 > best-authentication-platforms-for-ai-agents-and-mcp-servers-in-2026

Best Authentication Platforms for AI Agents and MCP Servers in 2026

2+ mon, 14+ hour ago   (1420+ words) That growth has made authentication the central unsolved problem of the agentic stack. When AI agents do nothing but answer questions, auth is a conversation-level concern. When they read emails, update CRMs, write to databases, and call external APIs autonomously,…...