Last refreshed 2026-06-30. Next refresh: weekly.
Why use gpt-oss-120b on Open Inference?
Open Inference offers gpt-oss-120b with free input token pricing. Open Inference provides an OpenAI-compatible API for hosted text-generation model inference.
Compare gpt-oss-120b across 11 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: gpt-oss-120bgpt-oss-120bRequest example
Gotchas
No curated gotchas have been sourced for this exact provider/model route yet.
Compare gpt-oss-120b Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Cloudflare Workers AI | $0.35 | $0.75 |
| OpenRouter | $0.04 | $0.18 |
| Together AI | $0.15 | $0.60 |
| Fireworks AI | $0.15 | $0.60 |
| GCP Vertex AI | $0.09 | $0.36 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | Free |
| Output tokens | Free |
Capabilities
About gpt-oss-120b
OpenAI open-weight model with 120 billion parameters. Text-only model supporting reasoning, function calling, and structured outputs. Free for self-hosting. Released August 5, 2025.
FAQ
What does gpt-oss-120b cost on Open Inference?
On Open Inference, gpt-oss-120b costs $0 per 1M input tokens and $0 per 1M output tokens.
What is the context window for gpt-oss-120b on Open Inference?
gpt-oss-120b supports a 131k token context window on Open Inference.
How does Open Inference compare to other gpt-oss-120b providers?
gpt-oss-120b is available from 11 providers. The cheapest input pricing is $0/1M tokens from Open Inference.
Who created gpt-oss-120b?
gpt-oss-120b was created by OpenAI as part of the GPT-OSS model family.
Is gpt-oss-120b open source?
gpt-oss-120b is open source under Apache 2.0 according to the seed data.