OpenAI
OpenAI: gpt-oss-120b
openai/gpt-oss-120bHugging Face ↗
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...
OpenAI: gpt-oss-120b usage over time
OpenRouter share of tokens, by day.
OpenAI: gpt-oss-120b holds 0.55% today, down from 0.59% at the start of the visible window.
Rank history
Adoption curve vs the pantheon
OpenAI: gpt-oss-120b's share plotted against days since first tracked, overlaid on other current leaders on the same axis. The question every new-model page asks: is this one going to make it?
Citable stat
As of 2026-09-01, OpenAI: gpt-oss-120b holds 0.6% of OpenRouter token share, down 0.41pp over 30 days. Source: Tidelines (OpenRouter).
Cost per session
Median dollars spent on one OpenAI: gpt-oss-120b session, by coding agent and session length.
Token rate sets the price; session length and reasoning set the bill.
| Agent | 1 turn | 2–9 turns | 10–49 turns | 50+ turns |
|---|---|---|---|---|
| Hermes Agent | $0.0006 | $0.0023 | $0.023 | $0.097 |
| Claude Code | — | $0.0021 | $0.020 | — |
Where to run it
OpenAI: gpt-oss-120b pricing by provider
Per-provider pricing, context, and uptime via OpenRouter. Sorted by output price.
OpenAI: gpt-oss-120b is served by 19 tracked endpoints on OpenRouter. The cheapest output price is $0.17 per million tokens from AkashML, and the most expensive is $0.95 from SambaNova. The largest context window offered is 131k tokens. Prices are list rates and refresh daily.
| Provider | Input $/M | Output $/M | Context | Uptime |
|---|---|---|---|---|
| AkashML | $0.03 | $0.17 | 131k | 96.73% |
| CoreWeave | $0.03 | $0.17 | 131k | 99.92% |
| DeepInfra · 131k | $0.04 | $0.17 | 131k | 99.98% |
| Novita | $0.05 | $0.25 | 131k | 100.00% |
| $0.09 | $0.36 | 131k | 92.62% | |
| DigitalOcean | $0.06 | $0.39 | 128k | 99.99% |
| SiliconFlow | $0.05 | $0.45 | 131k | 99.92% |
| Mancer 2 | $0.07 | $0.50 | 131k | 100.00% |
| BaseTen | $0.10 | $0.50 | 128k | 100.00% |
| Amazon Bedrock | $0.15 | $0.60 | 131k | — |
| Nebius | $0.15 | $0.60 | 131k | 99.83% |
| DeepInfra · 131k | $0.15 | $0.60 | 131k | 100.00% |
| Phala | $0.15 | $0.60 | 131k | 100.00% |
| Together | $0.15 | $0.60 | 131k | 99.77% |
| Groq | $0.15 | $0.60 | 131k | 100.00% |
| Parasail | $0.10 | $0.75 | 131k | 100.00% |
| Mara | $0.15 | $0.75 | 131k | 95.74% |
| Cerebras | $0.35 | $0.75 | 131k | 99.98% |
| SambaNova | $0.14 | $0.95 | 131k | 99.30% |