{"slug": "ai-agents-weekly-gpt-5-6-family-meta-muse-spark-1-1-grok-4-5-swe-1-7-robostral", "title": "🤖 AI Agents Weekly: GPT-5.6 Family, Meta Muse Spark 1.1, Grok 4.5, SWE-1.7, Robostral Navigate, The Harness Effect, and More", "summary": "OpenAI released the GPT-5.6 family (Sol, Terra, Luna) across ChatGPT, Codex, and the API, featuring agent-tuned capabilities and tiered pricing. Meta launched Muse Spark 1.1, a multimodal reasoning model for agentic tasks, and opened the Meta Model API to developers. These releases advance AI agent capabilities with improved reasoning, long-context support, and competitive pricing.", "body_md": "# 🤖 AI Agents Weekly: GPT-5.6 Family, Meta Muse Spark 1.1, Grok 4.5, SWE-1.7, Robostral Navigate, The Harness Effect, and More\n\n### GPT-5.6 Family, Meta Muse Spark 1.1, Grok 4.5, SWE-1.7, Robostral Navigate, The Harness Effect, and More\n\nIn today’s issue:\n\nOpenAI ships the GPT-5.6 family\n\nMeta releases Muse Spark 1.1\n\nOpenAI launches ChatGPT Work agent\n\nxAI releases Grok 4.5 for coding\n\nCognition ships SWE-1.7 at 1000 tok/s\n\nMistral drops Robostral Navigate\n\nHarness design sets agent economics\n\nOpenAI launches GPT-Live voice\n\nGoogle open-sources Gemma 4\n\nTencent open-sources 295B Hy3\n\nGoogle ships Cloud Run sandboxes\n\nNous puts Hermes Agent in the cloud\n\nMicrosoft releases Flint for agents\n\nTernlight runs embeddings in-browser\n\nGPT-5.6 proves 50-year math conjecture\n\nDatabricks benchmarks coding agents\n\nOpenAI audits SWE-Bench Pro\n\nFrontierFinance benchmarks agent analysts\n\nPaper turns memory into navigation\n\nGitLost tricks GitHub’s AI agent\n\nAnthropic finds a global workspace\n\nSakana replays Picbreeder with VLMs\n\nAnd all the top AI dev news, papers, and tools.\n\n## Top Stories\n\n### OpenAI Ships the GPT-5.6 Family\n\nOpenAI began rolling out its GPT-5.6 family, Sol, Terra, and Luna, across ChatGPT, Codex, and the API.\n\n**Capability tiers:** The number marks the generation while Sol, Terra, and Luna are durable tiers that advance on their own cadence. Sol is the flagship for the hardest tasks, Terra matches GPT-5.5 at lower cost, and Luna is the fastest and cheapest.**Built for agents:** GPT-5.6 is the new default brain behind Codex and ChatGPT Work, tuned for long-horizon tool use and coding.**Pricing:** Sol runs 5 dollars/30 dollars per million input/output tokens, Terra 2.50 dollars/15 dollars, and Luna 1 dollar/6 dollars.**Rollout:** Live now in ChatGPT, Codex, and the API, with the Codex desktop app merging into the ChatGPT app on Windows and Mac.\n\n### Meta Releases Muse Spark 1.1\n\nMeta Superintelligence Labs released Muse Spark 1.1, a multimodal reasoning model built for agentic tasks, and opened the Meta Model API to developers for the first time.\n\n**Agent orchestration:** Works with native tools, MCP servers, and custom skills, and can act as a main agent that plans and delegates work to parallel subagents.**Agentic benchmarks:** Posts SOTA scores on MCP Atlas (88.1), JobBench (54.7 vs Opus 4.8 at 48.4 and GPT-5.5 at 38.3), and Humanity’s Last Exam with tools (62.1 vs Opus 4.8 at 57.9), plus FinanceBench.**Long context:** Supports a 1M-token context window for long-horizon, multimodal work.**Open API and pricing:** Meta Model API is in public preview at 1.25 dollars/4.25 dollars per million input/output tokens, with 20 dollars in free credits for new accounts.", "url": "https://wpnews.pro/news/ai-agents-weekly-gpt-5-6-family-meta-muse-spark-1-1-grok-4-5-swe-1-7-robostral", "canonical_source": "https://nlp.elvissaravia.com/p/ai-agents-weekly-gpt-56-family-meta", "published_at": "2026-07-11 16:33:08+00:00", "updated_at": "2026-07-11 16:40:08.615682+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-products", "ai-agents", "ai-research"], "entities": ["OpenAI", "Meta", "GPT-5.6", "Muse Spark 1.1", "Codex", "ChatGPT", "Meta Model API"], "alternates": {"html": "https://wpnews.pro/news/ai-agents-weekly-gpt-5-6-family-meta-muse-spark-1-1-grok-4-5-swe-1-7-robostral", "markdown": "https://wpnews.pro/news/ai-agents-weekly-gpt-5-6-family-meta-muse-spark-1-1-grok-4-5-swe-1-7-robostral.md", "text": "https://wpnews.pro/news/ai-agents-weekly-gpt-5-6-family-meta-muse-spark-1-1-grok-4-5-swe-1-7-robostral.txt", "jsonld": "https://wpnews.pro/news/ai-agents-weekly-gpt-5-6-family-meta-muse-spark-1-1-grok-4-5-swe-1-7-robostral.jsonld"}}