Beast Now Thinks at Each Model's Highest Setting

October 29, 2026

When you pin Beast, the model now reasons at the highest effort it offers. Before, Beast stopped at high on most models, a step or two below what GPT-6, Claude, and several open models can do. Use it for the turn where you would rather wait than be wrong: the board number, the contract clause, the model that has to tie out.

What you can do

• Get max effort on GPT-6 models. GPT-6.1 Sol, GPT-6.1 Terra, GPT-6 Luna, and GPT-6 Astra now run at max. On Sol, Terra, and Luna, Beast still adds pro reasoning.
• Get max effort on every Claude model. Claude Opus 5.5, Claude Fable 5.1, Claude Sonnet 5.5, and Claude Haiku 5.5 run at max when you pin Beast.
• Get max effort on GLM 5.3, GLM 5.3 Flash, Kimi K3.1 Pro, and DeepSeek V4.1 Flash. GLM 5.3 Flash used to stop at high on Beast. It now runs at max like GLM 5.3.
• Get each model's top level where max is not offered. GPT-5.5, GPT-5.4 Mini, Qwen3.8 2.4T A95B, and Grok 4.7 run at xhigh. Gemini and local models run at high. Each is the highest setting that model accepts, so Beast never sends a request the model would turn down.
• Keep Fast and Medium as they were. Fast is still low effort and Medium is still medium.

Where this shows up

You are signing off the quarterly numbers before the board pack goes out. Pin Claude Opus 5.5 in Beast and ask it to check that every figure in the deck ties to the attached workbook. It now thinks as long as Opus can before it answers, and Beast still reviews and revises until the check passes.

Legal sent a redline an hour before a deal call. Pin GPT-6.1 Sol in Beast and ask what changed in liability, termination, and payment terms. Max effort with pro reasoning gives the hard clauses a second look.

You are choosing between two vendors on a long RFP. Pin Kimi K3.1 Pro or GLM 5.3 in Beast and ask for a scored comparison with the gaps each vendor left open.

Try it

• Pin Claude Opus 5.5 in Beast, attach the deck and workbook, then: "Check every number in this board deck against the workbook. List any figure that does not tie, where it comes from, and what it should be."
• Pin GPT-6.1 Sol in Beast, attach both versions, then: "Compare this redline to our last signed version. What changed in liability, termination, and payment terms, and which change should I push back on first?"
• Pin GLM 5.3 in Beast, attach both RFP responses, then: "Score these two vendors against our requirements. Show where each one is vague or silent, and tell me which questions to send before we decide."

Heads up

• Pinned Beast uses more tokens per turn. Max effort means longer thinking, and that thinking counts toward your plan. Each model keeps its token band. Pin Medium when a quick pass will do.
• Claude on Auto stays at medium. Auto does not push Claude to max on its own. Pin Beast when you want Opus, Fable, Sonnet, or Haiku at max.
• On Auto, the task still sets GPT effort. GPT-6.1 Sol, GPT-6.1 Terra, and GPT-6 Luna scale effort to how hard the turn looks. Pin Beast to force max.
• Max can take minutes on a hard turn. Long answers on hard problems may take noticeably longer than they did on high.