Free cloud & LLM pricing tools — AWS EC2 + LLM API Pricing Explorer

AWS EC2 Spot pricing — indicative discounts vs On-Demand

How far Spot Instances sit below On-Demand, by family and region, from the same committed prices the AWS EC2 explorer uses. In us-east-1 the median discount is about62%, up to 77% on r7i.16xlarge. Spot is indicative — it fluctuates and can be reclaimed with a two-minute interruption notice. Free, no signup.

Spot prices are indicative & interruptible

Spot discount by family

Min / median / max indicative discount off On-Demand per family in us-east-1. Deeper is not better if the capacity is volatile — treat these as directional.

FamilyCategorySizesMin discountMedianMax discount
r7iMemory optimized9−57%−65%−77%
r7gMemory optimized8−58%−67%−76%
m7gGeneral purpose8−53%−58.5%−73%
c7gCompute optimized8−54%−63.5%−71%
m7iGeneral purpose9−50%−61%−71%
t4gGeneral purpose7−49%−58%−71%
m6iGeneral purpose9−54%−65%−69%
c7iCompute optimized9−56%−63%−67%
t3General purpose7−53%−61%−67%

Every size — Spot vs On-Demand

74 sizes in us-east-1 — US East (N. Virginia) · Spot is indicativeExport CSV free, no account
CategoryArch
r7i.16xlargeMemory optimizedx86_64$4.23$0.9737−77.0%
r7g.12xlargeMemory optimizedarm64$2.57$0.6169−76.0%
r7g.16xlargeMemory optimizedarm64$3.43$0.8911−74.0%
m7g.12xlargeGeneral purposearm64$1.96$0.5288−73.0%
c7g.mediumCompute optimizedarm64$0.0363$0.0105−71.0%
m7i.24xlargeGeneral purposex86_64$4.84$1.40−71.0%
r7i.8xlargeMemory optimizedx86_64$2.12$0.6139−71.0%
t4g.nanoGeneral purposearm64$0.0042$0.0012−71.0%
r7g.8xlargeMemory optimizedarm64$1.71$0.5141−70.0%
c7g.12xlargeCompute optimizedarm64$1.74$0.5394−69.0%
c7g.16xlargeCompute optimizedarm64$2.32$0.7192−69.0%
m6i.32xlargeGeneral purposex86_64$6.14$1.90−69.0%
m7i.12xlargeGeneral purposex86_64$2.42$0.7500−69.0%
r7i.12xlargeMemory optimizedx86_64$3.18$0.9843−69.0%
m6i.24xlargeGeneral purposex86_64$4.61$1.47−68.0%
r7g.xlargeMemory optimizedarm64$0.2142$0.0685−68.0%
r7i.24xlargeMemory optimizedx86_64$6.35$2.03−68.0%
c7i.16xlargeCompute optimizedx86_64$2.86$0.9425−67.0%
m6i.8xlargeGeneral purposex86_64$1.54$0.5069−67.0%
t3.nanoGeneral purposex86_64$0.0052$0.0017−67.0%
c7i.8xlargeCompute optimizedx86_64$1.43$0.4855−66.0%
c7i.48xlargeCompute optimizedx86_64$8.57$2.91−66.0%
m6i.4xlargeGeneral purposex86_64$0.7680$0.2611−66.0%
r7g.mediumMemory optimizedarm64$0.0536$0.0182−66.0%
c7g.8xlargeCompute optimizedarm64$1.16$0.4060−65.0%
c7i.24xlargeCompute optimizedx86_64$4.28$1.50−65.0%
m6i.12xlargeGeneral purposex86_64$2.30$0.8064−65.0%
r7i.48xlargeMemory optimizedx86_64$12.70$4.45−65.0%
r7i.largeMemory optimizedx86_64$0.1323$0.0463−65.0%
m7i.16xlargeGeneral purposex86_64$3.23$1.16−64.0%
r7i.4xlargeMemory optimizedx86_64$1.06$0.3810−64.0%
c7i.12xlargeCompute optimizedx86_64$2.14$0.7925−63.0%
m7g.16xlargeGeneral purposearm64$2.61$0.9661−63.0%
r7g.largeMemory optimizedarm64$0.1071$0.0396−63.0%
t3.2xlargeGeneral purposex86_64$0.3328$0.1231−63.0%
t4g.microGeneral purposearm64$0.0084$0.0031−63.0%
c7g.xlargeCompute optimizedarm64$0.1450$0.0551−62.0%
t3.smallGeneral purposex86_64$0.0208$0.0079−62.0%
c7i.largeCompute optimizedx86_64$0.0893$0.0348−61.0%
c7i.xlargeCompute optimizedx86_64$0.1785$0.0696−61.0%
m6i.largeGeneral purposex86_64$0.0960$0.0374−61.0%
m7i.48xlargeGeneral purposex86_64$9.68$3.77−61.0%
m7i.largeGeneral purposex86_64$0.1008$0.0393−61.0%
r7g.4xlargeMemory optimizedarm64$0.8568$0.3342−61.0%
r7i.xlargeMemory optimizedx86_64$0.2646$0.1032−61.0%
t3.xlargeGeneral purposex86_64$0.1664$0.0649−61.0%
m7g.8xlargeGeneral purposearm64$1.31$0.5222−60.0%
t3.mediumGeneral purposex86_64$0.0416$0.0166−60.0%
t4g.2xlargeGeneral purposearm64$0.2688$0.1075−60.0%
m6i.xlargeGeneral purposex86_64$0.1920$0.0787−59.0%
m7g.4xlargeGeneral purposearm64$0.6528$0.2676−59.0%
m7i.2xlargeGeneral purposex86_64$0.4032$0.1653−59.0%
t3.microGeneral purposex86_64$0.0104$0.0043−59.0%
c7g.2xlargeCompute optimizedarm64$0.2900$0.1218−58.0%
m7g.largeGeneral purposearm64$0.0816$0.0343−58.0%
r7g.2xlargeMemory optimizedarm64$0.4284$0.1799−58.0%
t4g.largeGeneral purposearm64$0.0672$0.0282−58.0%
c7g.largeCompute optimizedarm64$0.0725$0.0312−57.0%
c7i.4xlargeCompute optimizedx86_64$0.7140$0.3070−57.0%
r7i.2xlargeMemory optimizedx86_64$0.5292$0.2276−57.0%
t4g.smallGeneral purposearm64$0.0168$0.0072−57.0%
c7i.2xlargeCompute optimizedx86_64$0.3570$0.1571−56.0%
m7i.xlargeGeneral purposex86_64$0.2016$0.0887−56.0%
m6i.16xlargeGeneral purposex86_64$3.07$1.38−55.0%
m7g.mediumGeneral purposearm64$0.0408$0.0184−55.0%
m7i.4xlargeGeneral purposex86_64$0.8064$0.3629−55.0%
c7g.4xlargeCompute optimizedarm64$0.5800$0.2668−54.0%
m6i.2xlargeGeneral purposex86_64$0.3840$0.1766−54.0%
m7g.2xlargeGeneral purposearm64$0.3264$0.1534−53.0%
m7g.xlargeGeneral purposearm64$0.1632$0.0767−53.0%
t3.largeGeneral purposex86_64$0.0832$0.0391−53.0%
t4g.xlargeGeneral purposearm64$0.1344$0.0632−53.0%
m7i.8xlargeGeneral purposex86_64$1.61$0.8064−50.0%
t4g.mediumGeneral purposearm64$0.0336$0.0171−49.0%

Spot is indicative and interruptible — read this first

Related: AWS EC2 pricing explorer →What is Spot / interruption? →us-east-1 pricing →

List prices, directional. On-Demand rates are AWS EC2 public list prices in USD. Spot is indicative only — it fluctuates and capacity can be reclaimed with a two-minute interruption notice; never a firm quote. Always confirm in the console before relying on Spot. Prices as of 2026-10-26.