gpt-oss-120b

completions

On:fireworksaideepinfraparasail

gpt-oss-120b

completions

Published by: openaiProviders:

fireworksai deepinfra parasail

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 to run on a single H100 GPU with native MXFP4 quantization. The model supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation.

Provider	Input	Output
fireworksai	$0.15 / 1M tokens	$0.6 / 1M tokens
deepinfra	$0.09 / 1M tokens	$0.45 / 1M tokens
parasail	$0.15 / 1M tokens	$0.6 / 1M tokens

Released

Aug 5, 2025

Knowledge

Feb 6, 2025

Context

131072

Input

$0.15 / 1M tokens

Output

$0.6 / 1M tokens

Capabilities: tools

Accepts: text

Returns: text

Providers	Context	Input Price	Output Price	Input Formats	Output Formats	License
fireworksai	131072 tokens	$0.15 / 1M tokens	$0.6 / 1M tokens	text	text	Apache-2.0
deepinfra	131072 tokens	$0.09 / 1M tokens	$0.45 / 1M tokens	text	text	Apache-2.0
parasail	131072 tokens	$0.15 / 1M tokens	$0.6 / 1M tokens	text	text	Apache-2.0

Released Aug 5, 2025Knowledge Cutoff: Feb 6, 2025

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Benchmark Results for gpt-oss-120b

Category Performance Scores:

Academia: Score 68.53 (Top 4% - Rank #14)
Finance: Score 75.65 (Top 4% - Rank #14)
Marketing: Score 65.86 (Top 7% - Rank #25)
Maths: Score 93.40 (Top 1% - Rank #4)
Programming: Score 50.10 (Top 13% - Rank #45)
Science: Score 73.05 (Top 15% - Rank #52)
Writing: Score 63.85 (Top 12% - Rank #42)

Overall Performance: 70.0618253968254 average score across all categories

Detailed Benchmark Scores:

Benchmark	Score	Percentile	Domain
AA Coding Index	50.10	Top 13%	Programming
AAII	57.90	Top 4%	General
AA Math Index	93.40	Top 1%	Mathematics
GPQA	79.15	Top 10%	STEM (Physics, Chemistry, Biology)
HLE	18.50	Top 3%	General Knowledge
LiveCodeBench	63.90	Top 15%	Programming
MMLU-Pro	80.80	Top 20%	General Knowledge
SciCode	36.20	Top 18%	Scientific

GPQA Score: 79.15 - Graduate-level reasoning benchmark

Model Comparison:

Provider: fireworksai

Model Type: completions

Context Size: 131072 tokens

Comparing against 345 models in the database

Category Scores

academia#8 finance#5 maths#2

Benchmark Tests

View Other Benchmarks

AA Coding Index

50.1

Programming

AAII

57.9

General

AA Math Index

93.4

Mathematics

GPQA

79.2

STEM (Physics, Chemistry, Biology)

HLE

18.5

General Knowledge

LiveCodeBench

63.9

Programming

MMLU-Pro

80.8

General Knowledge

SciCode

36.2

Scientific

Metric	AA Coding Index	AAII	AA Math Index	GPQA	HLE	LiveCodeBench	MMLU-Pro	SciCode
Score	50.1	57.9	93.4	79.2	18.5	63.9	80.8	36.2

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Code Examples

Integration samples and API usage

Code Samples for gpt-oss-120b

Python SDK Example:

from openai import OpenAI

client = OpenAI(
    base_url="https://api.us-east-1.langdb.ai/projects/<your_project_id>",
    api_key="<your_api_key>"
)

response = client.chat.completions.create(
    model="gpt-oss-120b",
    messages=[
        {"role": "user", "content": "Hello, how are you?"}
    ]
)

print(response.choices[0].message.content)

TypeScript SDK Example:

import OpenAI from 'openai';

const client = new OpenAI({
    baseURL: "https://api.us-east-1.langdb.ai/projects/<your_project_id>",
    apiKey: "<your_api_key>"
});

const response = await client.chat.completions.create({
    model: "gpt-oss-120b",
    messages: [
        { role: "user", content: "Hello, how are you?" }
    ]
});

console.log(response.choices[0].message.content);

cURL Example:

curl -X POST "https://api.us-east-1.langdb.ai/projects/<your_project_id>/v1/chat/completions" \
  -H "Authorization: Bearer <your_api_key>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-oss-120b",
    "messages": [
        {"role": "user", "content": "Hello, how are you?"}
    ]
  }'

Model: gpt-oss-120b

Provider: fireworksai

API Endpoint: $https://api.us-east-1.langdb.ai

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gpt-oss-120b by fireworksai - AI Model Details, Pricing, and Performance Metrics

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gpt-oss-120b

Access gpt-oss-120b through LangDB AI Gateway

Category Scores

Benchmark Tests

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Code Examples

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