model routing news, stories and analysis

Dumbbell chart of AI model price cuts in the AI model price war: Luna input $1.00 to $0.20, Luna output $6.00 to $1.20, Opus 5 input $10.00 to $5.00, Opus 5 output $50.00 to $25.00

AI model price war: US labs cut mid-tier as China closes gap

AI model price war cut US token prices 25% since mid-July. OpenAI slashed Luna 80%, Anthropic halved Opus 5 vs Fable 5, as Chinese rivals close the gap.

Lars Cornelissen · Aug 15, 2026

LLM groupthink novelty scores from Springboards show Flint at 7.47 distinct responses out of 10, Gemini 3.1 Pro at 3.19, Qwen3-30B-A3B at 3.11, GPT-5.4 at 2.54, and Claude 4.6 Sonnet at 1.83.

AI

LLM groupthink now has a novelty benchmark problem

LLM groupthink is the tendency of models to converge on similar answers. Flint scores 7.47 distinct replies out of 10 in Springboards tests.

Lars Cornelissen · Jul 2, 2026

Claude Fable 5 guardrails session split showing more than 95 percent of sessions with no fallback and fewer than 5 percent routed to Opus 4.8.

AI

Claude Fable 5 guardrails get a visibility reset

Claude Fable 5 guardrails are now visible after backlash. Builders should log fallback events, cost, and retention before trusting runs.

Lars Cornelissen · Jun 11, 2026

Donut chart showing where a Claude Fable 5 call runs: about 95 percent of sessions get the full Mythos-class model and under 5 percent are silently routed to Claude Opus 4.8.

AI

Fable 5 and Mythos 5 are one model with a bouncer

Claude Fable 5 and Claude Mythos 5 are the same Anthropic weights; a runtime classifier, not the model you call, decides which capability you actually get.

Lars Cornelissen · Jun 9, 2026