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Greek Retailer Jumbo Group Sustains Growth Amid Global Uncertainty

Greek retailer Jumbo Group has demonstrated remarkable resilience, posting a 6% year-on-year sales increase in November 2025 despite operating against a strong performance benchmark from the previous year.

Robust Performance In High-Pressure Months

The company’s performance over the January–November period, with growth climbing close to 8%, confirms that Jumbo’s momentum remains strong as it approaches the sector’s critical final weeks. Historically, November and December are peak months for retail, where full capacity and daily turnover are key determinants of annual performance.

Expanding Global Footprint Through Strategic Franchise Partnerships

Jumbo Group has reinforced its international presence by deepening ties with local franchise partners. The November inauguration of its fourth store in Israel underscores the confidence in the brand, while plans announced by the Fox Group—the franchise rights holder for Israel and Canada—include adding another five to six stores in Israel during 2026 and launching three stores in Ontario next year, contingent on favorable market conditions.

Navigating Supply Chain Challenges Amid Unrest

Amid ongoing farmers’ protests, concerns have emerged over potential disruptions to supply chains, particularly delays at customs, road networks, and ports. Such challenges could adversely affect domestic replenishments and export flows, impacting overall economic activity. In response, the group has urged the state to maintain stability and ensure the smooth operation of the country during this precarious period.

Regional Growth Performance

Performance by market continues to be robust. In Greece, net sales—excluding intragroup transactions—rose by approximately 6% in November, with an annual growth of around 9% over the first eleven months. In Cyprus, November figures advanced by about 3%, reaching roughly 8% year-to-date. Bulgaria, which capitalized on online sales through e-jumbo.bg, saw an 8% increase in November, though the year-to-date growth remains at 4%. Romania, incorporating online activity, noted a 6% rise in November, with an overall annual increase nearing 5%.

Anthropic Launches Claude Fable 5 With New AI Safety Controls

New Model Sets The Bar For AI Safety And Efficiency

Anthropic has launched Claude Fable 5, the latest public version of its Mythos model, expanding access to a system designed for software engineering, knowledge work and computer vision tasks. The company said high-risk requests involving areas such as cybersecurity, biology, chemistry and AI model distillation will be redirected to Claude Opus 4.8, which has been configured with additional safeguards.

Strategic Rollout And Broader Accessibility

Mythos was initially made available to a limited group of partners in April as Anthropic evaluated potential cybersecurity risks associated with the model. Access was expanded last week to hundreds of organisations across 15 countries, primarily those operating critical infrastructure. Claude Fable 5 is now available through Anthropic’s Claude API and usage-based Enterprise plans. Early access has also been included in selected subscription tiers ahead of a broader pricing rollout scheduled for June 23.

Advancing Safety And Industry Standards

Anthropic said the model underwent extensive safety testing before release, including bug bounty programmes and red-team exercises conducted by external organisations. According to the company, more than 1,000 hours of testing did not identify any universal jailbreak vulnerabilities.

A mandatory 30-day data retention policy will apply to all traffic processed by the model, including accounts that previously operated under zero-retention agreements. Anthropic said the measure is intended to improve monitoring and protection against emerging security threats.

Outstanding Performance And Competitive Pricing

Independent evaluations, including testing by analytics company Hex, reported strong performance in complex reasoning and analytical tasks. Companies, including Base44 and Genspark, highlighted improvements in tool use and interface design capabilities. Pricing has been set at $10 per million input tokens and $50 per million output tokens, compared with lower rates for previous models. Some enterprise customers, including Rakuten, said the model’s ability to verify aspects of its own output could help improve efficiency in tasks that require higher levels of accuracy.

Implications For The AI Market

The release comes as Anthropic prepares for a potential public market debut, and competition among leading AI developers continues to intensify. Alongside performance improvements, the company has placed significant emphasis on model safety, reflecting broader industry concerns around misuse, jailbreak attempts and the risks associated with increasingly capable AI systems.

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