Specification

Release date: 5 Aug 2025
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Openness: open-weights
Source:OpenAI Platform docsT1observed 2 h agohigh
Parameters: 116.8B
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Context window: 131.1K tokens
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Max output: 118K tokens
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Knowledge cutoff: Jun 2024
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Modalities: text
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Input modalities: text
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Output modalities: text
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Tokenizer: GPT
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
API model id: gpt-oss-120b
Source:OpenAI Platform docsT1observed 2 h agohigh
Hugging Face repo: openai/gpt-oss-120b
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Pipeline tag: text-generation
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Official page: developers.openai.com/api/docs/models/gpt-oss-120b
Source:OpenAI Platform docsT1observed 2 h agohigh
Model card: huggingface.co/openai/gpt-oss-120b
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Downloads: 5,463,732
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Likes: 5,188
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Groq model id: openai/gpt-oss-120b
Source:Groq — docs & pricingT1observed 1 h agohigh
Last modified: 2025-08-26T17:25:03+00:00
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 1 h agomedium
Openrouter id: openai/gpt-oss-120b
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Supported parameters: frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, reasoning_effort, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_a, top_k, top_logprobs, top_p
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

25

Source tiers

T1T25 / 20

Freshest observation

1 h ago

Conflicts

None

Modalities

Modalities: text
Input: text
Output: text

Capabilities

Tool calling
Yes
OpenRouter public model & pricing listing · T2
Structured output
Yes
OpenRouter public model & pricing listing · T2
Reasoning
Yes
OpenRouter public model & pricing listing · T2
Vision
Unavailable
Audio
Unavailable
Fine-tuning available
Unavailable

Context window: 131.1K tokens
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Max output: 118K tokens
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Knowledge cutoff: Jun 2024
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium
Tokenizer: GPT
Source:OpenRouter public model & pricing listingT2observed 1 h agomedium

No benchmark results recorded

Results appear when a tier 1–3 source publishes them; we never copy scores without a source.

Current prices

Current prices per 1M tokens
Provider	Input / 1M	Output / 1M	Cached in	Batch in / out	Context	Observed	Source
OpenAI APIopenai/gpt-oss-120b	$0.037	$0.17	—	—	131.1K	1 h ago	openrouter.aiT2
Fireworks AIfireworks/gpt-oss-120b	$0.15	$0.60	$0.015	—	—	1 h ago	app.fireworks.aiT1
GroqCloudopenai/gpt-oss-120b	$0.15	$0.60	—	—	131.1K	1 h ago	console.groq.comT1
OpenAI APIopenai/gpt-oss-120b:batch	$0.15	$0.60	—	—	131.1K	1 h ago	openrouter.aiT2

USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.

Available through 3

Fireworks AI GroqCloud OpenAI API

Price history

Input price · USD / 1M tokens

Output price · USD / 1M tokens

Fireworks AI
OpenAI API
GroqCloud

Estimated

Memory need = bytes per parameter (4-bit ≈ 0.5 × 1.15 overhead, 8-bit 1.0, fp16 2.0) + a KV-cache allowance. Not a measurement.

Estimated hardware fit
Hardware	Quantization	Memory	Est. need	Fits
Apple M3 Ultra	4bit	—	67.7 GB	Yes
AMD Instinct MI325X	4bit	256 GB	67.7 GB	Yes
AMD Instinct MI300X	4bit	192 GB	67.7 GB	Yes
Apple M2 Ultra	4bit	—	67.7 GB	Yes
NVIDIA B200	4bit	180 GB	67.7 GB	Yes
NVIDIA H200	4bit	141 GB	67.7 GB	Yes
Apple M1 Ultra	4bit	—	67.7 GB	Yes
Apple M3 Max	4bit	—	67.7 GB	Yes
Apple M4 Max	4bit	—	67.7 GB	Yes
NVIDIA DGX Spark	4bit	128 GB	67.7 GB	Yes
Apple M2 Max	4bit	—	67.7 GB	Yes
NVIDIA A100 80GB	4bit	80 GB	67.7 GB	Yes
NVIDIA H100 SXM	4bit	80 GB	67.7 GB	Yes
Apple M1 Max	4bit	—	67.7 GB	No
Apple M4 Pro	4bit	—	67.7 GB	No
Apple M3 Pro	4bit	—	67.7 GB	No
Apple M1 Pro	4bit	—	67.7 GB	No
Apple M2 Pro	4bit	—	67.7 GB	No
Apple M4	4bit	—	67.7 GB	No
NVIDIA GeForce RTX 5090	4bit	32 GB	67.7 GB	No
Apple M2	4bit	—	67.7 GB	No
Apple M3	4bit	—	67.7 GB	No
NVIDIA GeForce RTX 3090	4bit	24 GB	67.7 GB	No
NVIDIA GeForce RTX 4090	4bit	24 GB	67.7 GB	No
Apple M1	4bit	—	67.7 GB	No

Ancestors 0

None recorded.

This model

gpt-oss-120b

116.8B params

Quantizations 1

amd/gpt-oss-120b-w-mxfp4-a-fp859.5B

Descendants 0

None recorded.

Papers 0

No papers linked yet.

Repositories 0

No repositories linked yet.

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history

25 claims · 25 properties

Release daterelease_date1

Claim history for Release date
Value	Valid from → to	Status	Source	Confidence	Extractor
5 Aug 2025	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Opennessopenness1

Claim history for Openness
Value	Valid from → to	Status	Source	Confidence	Extractor
open-weights	11 Sept 2026 20:51 UTC → current	current	OpenAI Platform docsT1	high	deterministic

Parametersparameter_count1

Claim history for Parameters
Value	Valid from → to	Status	Source	Confidence	Extractor
116.8B	11 Sept 2026 21:11 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Context windowcontext_length1

Claim history for Context window
Value	Valid from → to	Status	Source	Confidence	Extractor
131.1K tokens	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Max outputmax_output_tokens1

Claim history for Max output
Value	Valid from → to	Status	Source	Confidence	Extractor
118K tokens	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Knowledge cutoffknowledge_cutoff1

Claim history for Knowledge cutoff
Value	Valid from → to	Status	Source	Confidence	Extractor
Jun 2024	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Modalitiesmodalities1

Claim history for Modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
text	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Input modalitiesmodalities_input1

Claim history for Input modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
text	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Output modalitiesmodalities_output1

Claim history for Output modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
text	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Tokenizertokenizer1

Claim history for Tokenizer
Value	Valid from → to	Status	Source	Confidence	Extractor
GPT	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

API model idapi_model_id1

Claim history for API model id
Value	Valid from → to	Status	Source	Confidence	Extractor
gpt-oss-120b	11 Sept 2026 20:51 UTC → current	current	OpenAI Platform docsT1	high	deterministic

Hugging Face repohf_repo1

Claim history for Hugging Face repo
Value	Valid from → to	Status	Source	Confidence	Extractor
openai/gpt-oss-120b	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Pipeline tagpipeline_tag1

Claim history for Pipeline tag
Value	Valid from → to	Status	Source	Confidence	Extractor
text-generation	11 Sept 2026 21:11 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Official pageofficial_url1

Claim history for Official page
Value	Valid from → to	Status	Source	Confidence	Extractor
https://developers.openai.com/api/docs/models/gpt-oss-120b	11 Sept 2026 20:51 UTC → current	current	OpenAI Platform docsT1	high	deterministic

Model cardmodel_card_url1

Claim history for Model card
Value	Valid from → to	Status	Source	Confidence	Extractor
https://huggingface.co/openai/gpt-oss-120b	11 Sept 2026 21:11 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Downloadsmetric.downloads1

Claim history for Downloads
Value	Valid from → to	Status	Source	Confidence	Extractor
5,463,732	11 Sept 2026 21:11 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Likesmetric.likes1

Claim history for Likes
Value	Valid from → to	Status	Source	Confidence	Extractor
5,188	11 Sept 2026 21:11 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Descriptiondescription1

Claim history for Description
Value	Valid from → to	Status	Source	Confidence	Extractor
Most powerful open-weight model, fits into an H100 GPU	11 Sept 2026 20:51 UTC → current	current	OpenAI Platform docsT1	high	deterministic

Groq model idgroq_model_id1

Claim history for Groq model id
Value	Valid from → to	Status	Source	Confidence	Extractor
openai/gpt-oss-120b	11 Sept 2026 21:10 UTC → current	current	Groq — docs & pricingT1	high	deterministic

Last modifiedlast_modified1

Claim history for Last modified
Value	Valid from → to	Status	Source	Confidence	Extractor
2025-08-26T17:25:03+00:00	11 Sept 2026 21:11 UTC → current	current	Hugging Face Hub (public pages, model cards, papers)T2	medium	deterministic

Openrouter idopenrouter_id1

Claim history for Openrouter id
Value	Valid from → to	Status	Source	Confidence	Extractor
openai/gpt-oss-120b	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Reasoningreasoning1

Claim history for Reasoning
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Structured outputstructured_output1

Claim history for Structured output
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Supported parameterssupported_parameters1

Claim history for Supported parameters
Value	Valid from → to	Status	Source	Confidence	Extractor
frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, reasoning_effort, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_a, top_k, top_logprobs, top_p	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Tool callingtool_calling1

Claim history for Tool calling
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
Listed by providerModelgpt-oss-120bOpenAI
GroqCloud lists gpt-oss-120b at $0.15 in / $0.6 out per 1M tokens
groq_pricing
console.groq.com
11 Sept 2026
Listed by providerModelgpt-oss-120bOpenAI
OpenAI API lists gpt-oss-120b at $0.15 in / $0.6 out per 1M tokens
openrouter
openrouter.ai
11 Sept 2026
Listed by providerModelgpt-oss-120bOpenAI
OpenAI API lists gpt-oss-120b at $0.037 in / $0.17 out per 1M tokens
openrouter
openrouter.ai
11 Sept 2026
Listed by providerModelgpt-oss-120bOpenAI
Fireworks AI lists gpt-oss-120b at $0.15 in / $0.6 out per 1M tokens
fireworks_pricing
app.fireworks.ai
11 Sept 2026
New modelModelgpt-oss-120bOpenAI
New model: gpt-oss-120b (OpenAI)
openai
developers.openai.com

Full timeline →

Source documents
Source	Document	Type	Tier	Last observed	Snapshots
Groq — docs & pricing	console.groq.com/docs/models	model_docs	T1· Official	1 h ago	1
Fireworks AI — pricing	docs.fireworks.ai/serverless/pricing.md	pricing	T1· Official	1 h ago	1
OpenAI Platform docs	developers.openai.com/api/docs/models.md	model_docs	T1· Official	1 h ago	1
Hugging Face Hub (public pages, model cards, papers)	huggingface.co/amd/gpt-oss-120b-w-mxfp4-a-fp8	model_page	T2· Quality secondary	1 h ago	2
Hugging Face Hub (public pages, model cards, papers)	huggingface.co/models?author=openai&p=0&sort=downloads	listing	T2· Quality secondary	1 h ago	2
OpenRouter public model & pricing listing	openrouter.ai/api/v1/models	catalogue	T2· Quality secondary	1 h ago	1

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.