gpt-oss-20b

by OpenAI · openai/gpt-oss-20b

gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...

Input / 1M tokens
$0.018
Output / 1M tokens
$0.09
Context
131K

Specs

Input price$0.018 / 1M tokens
Output price$0.09 / 1M tokens
Cached input$0.009 / 1M tokens
Context window131K tokens
Max output32.8K tokens
Readstext
Writestext
Tool callingYes
ReasoningYes
ListedAug 5, 2025

List prices in USD, updated Oct 30, 2026. Providers may charge differently.

Providers

10 providers serve this model, as of Oct 30, 2026, 18:12 UTC.

Providers serving this model, sorted by price
ProviderQuantizationContextMax outputInput / 1MOutput / 1MCache read / 1MUptime (30 min)Latency (median)Throughput (median)SupportsStatus
DarkbloomCheapestfp8131K32.8K$0.018$0.09$0.009100%935 ms64 tok/sNormal
AkashMLfp4131K118K$0.02$0.10—100%426 ms133 tok/sNormal
CoreWeavefp4131K118K$0.03$0.13$0.03100%223 ms92 tok/sNormal
DekaLLMbf16131K118K$0.029$0.14$0.029100%421 ms56 tok/sNormal
DeepInfrabf16131K118K$0.03$0.14—100%273 ms105 tok/sNormal
Parasailfp4131K118K$0.03$0.15$0.02100%1.07 s97 tok/sNormal
Amazon Bedrock—131K118K$0.07$0.15—100%325 ms113 tok/sNormal
Amazon BedrockFastest—131K118K$0.07$0.15—100%394 ms427 tok/sNormal
SiliconFlowfp8131K8.19K$0.04$0.18—86.2%1.14 s36 tok/sCode -2
Groq—131K65.5K$0.075$0.30$0.0375100%398 ms396 tok/sNormal

"Cheapest" is the lowest input plus output price; "Fastest" the highest median throughput. Columns empty for every provider are not shown.