**Trader consensus on A100 GPU rental prices landing in the $1.00–$1.25 per GPU-hour range at end-September 2026 stems primarily from sustained supply growth in secondary marketplaces offsetting steady mid-tier AI demand.** Newer architectures such as H100, H200, and Blackwell GPUs continue drawing frontier workloads, freeing additional A100 capacity (both 40GB and 80GB variants) on platforms like Vast.ai, RunPod, and Jarvislabs. As of mid-September, live on-demand listings cluster between roughly $0.89 and $1.90 per hour with medians near $1.80, while transaction-based indices such as Ornn OCPI-A100 settled around $1.02 and marketplace spot rates often dip below $1.00. This dynamic has kept prices in a stable mid-range over the past 90 days, with only modest weekly volatility and no major supply shocks or demand spikes reported recently. Key near-term factors include continued hyperscaler and neocloud capacity releases plus typical seasonal utilization patterns, reinforcing the $1.00–$1.25 band as the market-implied equilibrium.