gpt-oss-120b

OpenAI API model specs with normalized input price, output price, context window, sample workload cost, and related comparisons.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget brief

gpt-oss-120b is estimated at $0.1 for the standard workload.

gpt-oss-120b is best suited for cost-sensitive production traffic. A 1M input token plus 500K output token workload is estimated at $0.1.

Input price$0.03per 1M tokens
Output price$0.15per 1M tokens
Context window131.07Kreported maximum
Popularity#2259.5B tokens signal volume

Use this as a first-pass planning estimate, then verify provider limits, routing, discounts, and availability before production deployment.

Model Specs
ProviderOpenAI
Model IDopenai/gpt-oss-120b
Prompt Price
per 1M tokens
$0.03
Completion Price
per 1M tokens
$0.15
Sample Workload Cost
1M input + 500K output
$0.1
Context Window131.07K
Release Date
Popularity#22
Popularity Signal59.5B tokens

Estimate your workload cost

Estimate this model for your workload

Prices are normalized to USD per 1M tokens.
gpt-oss-120b Calculating… Estimated monthly API cost
Unit prices $0.03 input / $0.15 output Per 1M tokens

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Alternative path

Alternative Shortlist

Open model finder

Use these rows to build a test shortlist around gpt-oss-120b. Lower cost, same-provider fit, and larger context are separate decisions, so each group is ranked by a different signal.

Lower-cost alternatives

Cross-provider candidates with a lower standard 1M input plus 500K output estimate.

ModelProviderSample CostContextWhy it is hereNext Step
🔥Owl AlphaOpenRouter$01.05MLower standard workload estimate from another provider.Open model Compare
New🔥Nemotron 3 Ultra (free)NVIDIA$01MLower standard workload estimate from another provider.Open model Compare
🔥Laguna M.1 (free)Poolside$0262.14KLower standard workload estimate from another provider.Open model Compare
Nemotron 3 Super (free)NVIDIA$01MLower standard workload estimate from another provider.Open model Compare

Larger-context upgrades near this budget

Models with more context that stay within a close sample-cost band when price data is available.

ModelProviderSample CostContextWhy it is hereNext Step
🔥Owl AlphaOpenRouter$01.05MMore context while staying near this model's sample-cost band.Open model Compare
Lyria 3 Pro PreviewGoogle$01.05MMore context while staying near this model's sample-cost band.Open model Compare
Lyria 3 Clip PreviewGoogle$01.05MMore context while staying near this model's sample-cost band.Open model Compare
DeepSeek V4 Flash (free)DeepSeek$01.05MMore context while staying near this model's sample-cost band.Open model Compare
Model Introduction

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized...

Best Fit

gpt-oss-120b is best suited for cost-sensitive production traffic.

Cost Example

A 1M input token plus 500K output token workload is estimated at $0.1.

Decision Shortcuts

Compare this model

Search head-to-head pages that include gpt-oss-120b and review input price, output price, context, and sample workload cost.

Find comparisons

OpenAI catalog

See other OpenAI models before narrowing your shortlist.

Open provider hub

Cheaper alternatives

Start from models sorted by a standard cost estimate when budget is the first constraint.

Browse low-cost models

High-Interest Comparisons

Search this model
ComparisonCost-first PickContext Pick
gpt-oss-120b vs Qwen3.5-122B-A10Bgpt-oss-120bQwen3.5-122B-A10B
gpt-oss-120b vs Laguna XS.2 (free)Laguna XS.2 (free)Laguna XS.2 (free)
🔥Laguna M.1 (free) vs gpt-oss-120bLaguna M.1 (free)Laguna M.1 (free)
gpt-oss-120b vs CoBuddy (free)CoBuddy (free)Tie
🔥Claude Opus 4.6 vs gpt-oss-120bgpt-oss-120bClaude Opus 4.6
🔥DeepSeek V4 Flash vs gpt-oss-120bgpt-oss-120bDeepSeek V4 Flash
Kimi K2.6 vs gpt-oss-120bgpt-oss-120bKimi K2.6
gpt-oss-120b vs Gemma 4 31Bgpt-oss-120bGemma 4 31B

Popular Comparisons

Search all comparisons
ComparisonNewest Release
🔥Claude Opus 4.6 vs gpt-oss-120b
🔥Claude Opus 4.7 vs gpt-oss-120b
🔥Claude Sonnet 4.6 vs gpt-oss-120b
🔥DeepSeek V3.2 vs gpt-oss-120b
🔥DeepSeek V4 Flash vs gpt-oss-120b
🔥DeepSeek V4 Pro vs gpt-oss-120b
🔥Gemini 2.5 Flash Lite vs gpt-oss-120b
🔥Gemini 2.5 Flash vs gpt-oss-120b
🔥Gemini 3 Flash Preview vs gpt-oss-120b
🔥Gemini 3.1 Flash Lite vs gpt-oss-120b