The Price Reversal Phenomenon: When Cheaper AI Costs More
A 2026 Microsoft Research preprint found the cheaper-per-token AI model cost more to finish the job in 32% of model pairs. Why the sticker misleads.
Capability under pressure
Leaderboards compress messy reality into one number. Learn what survives outside the test.
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Model releases, capability comparisons and rigorous analysis of the benchmarks used to rank them.
A 2026 Microsoft Research preprint found the cheaper-per-token AI model cost more to finish the job in 32% of model pairs. Why the sticker misleads.
GPT-5.6 launched June 26 2026 as Sol, Terra and Luna. The flagship Sol holds GPT-5.5 pricing at $5/$30 per million tokens. Here is the real cost per task.
Token data from OpenRouter shows open-source LLMs passing proprietary models in mid-2026, a roughly 60/40 flip. The daily breakdown by AI lab.
Open-weights LLMs crossed from toy to useful in 2026. What actually changed, and the cost math for when running a model yourself beats paying an API.
AI agent benchmarks broke in 2026: reward-hacked to 100%, SWE-bench Verified retired, scores swung by harness choice. What each measures and which to trust.