gpt-oss-120b

Tool callingStructured outputReasoning

Hugging Face Launch post Website Docs

Open GPT reasoning model for self-hosted agents and controllable deployments

Context: 131K
Released: 1y ago
Parameters: 120B
Input / 1M tokens: $0.15
Output / 1M tokens: $0.60
Cached input / 1M tokens: $0.08

Sources:models.devOpenRouter

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

Other published benchmarks

Evaluation	Reported score and source
Terminal Bench	14.2% Terminal-Bench v2 Leaderboard · gpt-oss-120b Agent: Mini-SWE-Agent Terminal-Bench v2 Leaderboard Original-source terms apply
Terminal Bench	18.7% Terminal-Bench v2 Leaderboard · gpt-oss-120b Agent: Terminus 2 Terminal-Bench v2 Leaderboard Original-source terms apply
Terminal Bench	14.2% https://www.tbench.ai/leaderboard/terminal-bench/2.0 · gpt-oss-120b_unknown Agent: Mini-SWE-Agent · Reasoning effort: unknown https://www.tbench.ai/leaderboard/terminal-bench/2.0 Original-source terms apply
Terminal Bench	18.7% https://www.tbench.ai/leaderboard/terminal-bench/2.0 · gpt-oss-120b_unknown Agent: Terminus 2 · Reasoning effort: unknown https://www.tbench.ai/leaderboard/terminal-bench/2.0 Original-source terms apply

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

Specifications

Developer: OpenAI
Model family: GPT
Type: Language model
Predecessor: —
Successor: —
Released: August 5, 2025
Model ID: openai/gpt-oss-120b
Openness: Open weights
License: —
Parameters: 120B
Input modalities: text
Output modalities: text
Modality: text->text
Native context: 128K
Tokenizer: GPT
Max output tokens: 66K
Knowledge cutoff: 2024-06-30
Hugging Face: openai/gpt-oss-120b
Source freshness: Metadata synced Oct 8, 2026, 10:17 PM UTC

Additional source evidence

Source model: openai/gpt-oss-120b
Source family: gpt-oss
Last updated: 2025-08-05
Model context: 131K
Model output limit: 33K
Open weights: Yes
File attachments: No
Reasoning: Yes
Tool calling: Yes
Structured output: Yes
Temperature control: Yes

Downloadable weights

Hugging Face

Complete source record (JSON)

{
  "id": "openai/gpt-oss-120b",
  "name": "GPT OSS 120B",
  "description": "Open GPT reasoning model for self-hosted agents and controllable deployments",
  "family": "gpt-oss",
  "last_updated": "2025-08-05",
  "attachment": false,
  "reasoning": true,
  "tool_call": true,
  "structured_output": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 131072,
    "output": 32768
  },
  "release_date": "2025-08-05",
  "open_weights": true,
  "weights": [
    {
      "label": "Hugging Face",
      "url": "https://huggingface.co/openai/gpt-oss-120b"
    }
  ]
}

Infrastructure

Provider availability

All providers

Provider	Endpoint	Context	Input /M tokens	Output /M tokens	Cached input /M tokens	Cache write /M tokens	Uptime 1d	Data handling
AkashML	akashml/bf16	131K	$0.03	$0.19	$0.03	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
AkashML	akashml/bf16Batch pricing	131K	$0.03	$0.19	$0.03	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
CoreWeave	coreweave/fp4	131K	$0.03	$0.17	$0.03	—	99.79%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
CoreWeave	coreweave/fp4Batch pricing	131K	$0.03	$0.17	$0.03	—	99.79%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DekaLLM	dekallm/bf16	131K	$0.03	$0.18	$0.03	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DekaLLM	dekallm/bf16Batch pricing	131K	$0.03	$0.18	$0.03	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Venice	venice/int4	128K	$0.03	$0.15	$0.03	—	99.24%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Venice	venice/int4Batch pricing	128K	$0.03	$0.15	$0.03	—	99.24%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DeepInfra	deepinfra/bf16	131K	$0.04	$0.17	—	—	99.93%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DeepInfra	deepinfra/bf16Batch pricing	131K	$0.04	$0.17	—	—	99.93%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Crusoe	crusoe/bf16	131K	$0.05	$0.25	$0.05	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Crusoe	crusoe/bf16Batch pricing	131K	$0.05	$0.25	$0.05	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Mancer 2	mancer/fp8	131K	$0.05	$0.25	—	—	99.93%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Mancer 2	mancer/fp8Batch pricing	131K	$0.05	$0.25	—	—	99.65%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Novita	novita/fp4	131K	$0.05	$0.25	—	—	99.93%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Novita	novita/fp4Batch pricing	131K	$0.05	$0.25	—	—	99.93%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DigitalOcean	digitalocean	128K	$0.06	$0.42	$0.01	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DigitalOcean	digitaloceanBatch pricing	128K	$0.06	$0.42	$0.01	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Google	google-vertex/global	131K	$0.09	$0.36	—	—	20.56%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Google	google-vertex/globalBatch pricing	131K	$0.09	$0.36	—	—	21.94%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
BaseTen	baseten/fp4	128K	$0.10	$0.50	$0.10	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
BaseTen	baseten/fp4/us	128K	$0.10	$0.50	$0.10	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
BaseTen	baseten/fp4Batch pricing	128K	$0.10	$0.50	$0.10	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
BaseTen	baseten/fp4/usBatch pricing	128K	$0.10	$0.50	$0.10	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Parasail	parasail/fp4	131K	$0.10	$0.75	$0.06	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Parasail	parasail/fp4Batch pricing	131K	$0.10	$0.75	$0.06	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
SambaNova	sambanova	131K	$0.14	$0.95	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
SambaNova	sambanovaBatch pricing	131K	$0.14	$0.95	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Amazon Bedrock	amazon-bedrock/eu-west-1	131K	$0.15	$0.60	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Amazon Bedrock	amazon-bedrock	131K	$0.15	$0.60	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Amazon Bedrock	amazon-bedrock/eu-west-1Batch pricing	131K	$0.15	$0.60	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Amazon Bedrock	amazon-bedrockBatch pricing	131K	$0.15	$0.60	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DeepInfra	deepinfra/turbo	131K	$0.15	$0.60	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
DeepInfra	deepinfra/turboBatch pricing	131K	$0.15	$0.60	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Groq	groq	131K	$0.15	$0.60	$0.08	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Groq	groqBatch pricing	131K	$0.15	$0.60	$0.08	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Mara	mara	131K	$0.15	$0.75	—	—	95.81%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Mara	maraBatch pricing	131K	$0.15	$0.75	—	—	95.90%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Nebius	nebius/fp4	131K	$0.15	$0.60	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Nebius	nebius/fp4Batch pricing	131K	$0.15	$0.60	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Phala	phala	131K	$0.15	$0.60	—	—	99.73%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Phala	phalaBatch pricing	131K	$0.15	$0.60	—	—	99.73%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
SiliconFlow	siliconflow/fp8	131K	$0.15	$0.60	$0.08	—	75.35%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
SiliconFlow	siliconflow/fp8Batch pricing	131K	$0.15	$0.60	$0.08	—	73.46%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Together	together	131K	$0.15	$0.60	—	—	96.16%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Together	togetherBatch pricing	131K	$0.15	$0.60	—	—	95.88%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Cerebras	cerebras/fp16	131K	$0.35	$0.75	$0.35	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
Cerebras	cerebras/fp16Batch pricing	131K	$0.35	$0.75	$0.35	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15

Provider data:OpenRouter

Text provenance

EU · product-scoped

OpenAI textGrain watermarking

In the EU, ChatGPT-generated text uses textGrain. OpenAI says API customers can opt in globally for select models, so watermarking depends on the product surface and configuration.

Official explanation

Deployment graph

Can I run this?

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