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GPT OSS 120B Maas

OpenAI
Reasoning
Compare GPT OSS 120B MaasCount tokens for GPT OSS 120B Maas
Context
131K
Max output
33K
Serving providers
1
Cheapest input
$0.15 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
Vertex AI Openai ModelsCheapest$0.15$0.601
ComponentUnitStandardBatchCached
Text input/1M tok$0.1500——
Text output/1M tok$0.6000——

Price history

input + output $/1M since we started tracking
Input Output
$0.000$0.200$0.400$0.600Sep 2Jun 22$0.600$0.150

Cost calculator

estimate your monthly spend on this model
$78
estimated / month

Model IDs

copy the exact identifier for your platform
vertex_ai/openai/gpt-oss-120b-maas

Frequently asked questions

GPT OSS 120B Maas pricing, context and availability

How much does GPT OSS 120B Maas cost?

GPT OSS 120B Maas costs $0.15 per 1M input tokens and $0.60 per 1M output tokens at its cheapest provider via Vertex AI Openai Models.

What is the context window of GPT OSS 120B Maas?

GPT OSS 120B Maas accepts up to 131K tokens of context and can return up to 33K output tokens.

What can GPT OSS 120B Maas do?

GPT OSS 120B Maas supports reasoning.

Other OpenAI models

compare pricing across the OpenAI lineup
gpt-oss-120b$0.05/1M · 18 providersgpt-oss-20b$0.01/1M · 12 providersGPT-5$1.25/1M · 6 providersGPT-4o$2.50/1M · 6 providersGPT-5 Nano$0.05/1M · 5 providersGPT-4.1 Nano$0.10/1M · 5 providersGPT-4o-mini$0.15/1M · 5 providersGPT-5 Mini$0.25/1M · 5 providers
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