opus

Qwen3.8 27B outperforms Opus 5 Medium on the Artificial Analysis Agentic Index, highlighting its strong capabilities in agentic tasks.

The article discusses the release of Qwen 3.8 27b, a 27 billion parameter AI model that reportedly performs comparably to larger models like Opus 4.6, raising questions about the future of AI subscriptions and local AI efficiency.

Artikel ini membandingkan performa DeepSeek 0813 Pro dengan Fable 5 dan Opus 4.8, kemungkinan menyoroti perbedaan kemampuan di berbagai tolok ukur.

Discusses a potential vulnerability in the ARC AGI 3 benchmark where the Opus model could be gamed if it functions as a loop rather than a pure model.

Elon Musk claims that Grok 4.5 and Opus 5 are the only two AI models on the Pareto frontier of performance and efficiency.

Shubham Saboo discusses a speculative AI system where Opus 5 acts as advisor, GPT-5.6 as orchestrator, and Gemini 3.6 Flash as worker to solve complex problems.

Anthropic publishes the system card for Claude 5 Opus, detailing its capabilities, safety evaluations, and deployment details.

Anthropic has expanded Claude's voice mode to its Opus and Sonnet models, enabling complex problem-solving and real-time actions, with multilingual support in French, German, Spanish, Hindi, Indonesian, Italian, Japanese, Korean, and Portuguese.

Opus 5 introduces one-shot learning capabilities.

Kimi K3 has achieved a ranking on the Agent Arena leaderboard equivalent to opus thinking.

Cognition replaced the Opus model with Fable in Devin's Fusion architecture, achieving higher performance at lower cost despite Fable's higher per-token price, through better delegation and reduced lead model turns.

Databricks benchmarks show pi-coding-agent is up to 2x cheaper than CC/Codex with higher pass rates, and GLM 5.2 performs on par with Opus 4.8 for coding tasks.

Suggests that Anthropic's Fable model is equivalent to Opus, and Opus to Sonnet, possibly indicating a rebranding or restructuring of model tiers.

Introduces how to use Fable 5 as the orchestrator, combined with Opus and Codex models to execute tasks to save on Fable usage, including specific configuration in Claude Code.

Introduces a third-party tool that allows manual switching between Claude's Fable, Opus, and Sonnet models, enhancing flexibility.

Discusses Fable 5's pricing at twice Opus, currently free via Claude subscription until July 7, after which pay-per-usage, with switching advice.

A user reports that Fable 5's new classifiers misrouted 75% of a coding session to Opus, flagging routine coding as a cybersecurity risk and causing unexpectedly high costs.

Discussion of open-source model tiers, comparing DSV4-flash to Sonnet 5 and GLM 5.2 to Opus 4.8, with a prediction of a fable-tier model by end of year.

Claude Fable achieves 16.10% on the Remote Labor Automation index, doubling the score of the next best model, Opus.

A tweet thread explaining how to configure Fable 5 as the orchestrator with Opus and Sonnet as subagents, plus Codex as a peer engineer, in Claude Code to optimize model usage and task delegation.