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GPT-6.1 Sol launched 29 Sep 2026: $2/$10 per 1M tokens, $0.10 cached input, 1.05M context. Specs, 272K pricing rules, benchmarks vs GPT-6 Astra, GPT-6 Sol and Claude, and a Responses API quickstart.

MiMo-V2.6-Flash is Xiaomi's MIT-licensed 309B/15B-active MoE at $0.14/$0.28 per 1M tokens. The Distill-Qwen-9B runs on an 8 GB GPU. Specs, benchmarks, VRAM by quant, and Ollama / LM Studio / llama.cpp commands.

Grok Bot is SpaceXAI's always-on agent on its own cloud computer. What it costs on Cursor and SuperGrok plans, which model runs it, Enterprise, Plaid finance, Team Bots, the dot.com redirect, Voice Transcribe 2.0, and what's confirmed about Grok 4.8 ...

Sonnet 5.5 costs half of Opus 5.5 per token and nearly matches it on benchmarks, but uses ~60% more output tokens. Benchmarks, a per-task cost worked example, and a task-by-task pick table.

OpenAI dots are always-on ChatGPT agents on GPT-6 Astra, each with its own cloud computer and 4,000+ app plugins. Who gets them, what they cost, setup, safety rules, limits, and how they compare with Meta Muse and Grok Bot.

ChatGPT Pro 500 costs $500/month for 25x Plus usage and Ultrafast. The $200 Pro plan drops to 10x Plus and 100 GPT-6 Pro messages a week on Oct 30, 2026. Full plan comparison and whether to upgrade, stay or downgrade.

Claude Sonnet 5.5 (Sept 28, 2026): $2/$10 per 1M tokens, 1M context, 128K output, API ID claude-sonnet-5-5. Benchmarks vs Opus 5.5 and GPT-6 Sol, Python quickstart, and the five breaking changes from Sonnet 5.

Everything Meta announced for Muse at Connect 2026: the Muse Charm keychain, the Muse Realtime Avatar model (448x768 at 25fps, ~870ms), Realtime Voice, Mac computer use, glasses, connectors, Muse for Small Business and the Meta Enterprise Platform.

Claude Sonnet 5.5 and GPT-6.1 Sol launched a day apart at the same $2/$10 price. Sonnet leads AA's Intelligence Index 56 to 52; Sol costs $0.72 per task vs $7.60. Benchmarks, caching, long-context pricing and a worked cost example.

GPT-6 Sol ($2/$10) and GPT-6 Luna ($0.10/$0.50) launched 22 Sept 2026 at half the price of GPT-5.6. Specs, model IDs, pricing, OpenAI vs independent benchmarks, availability, API code, and Sol vs Astra.