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OpenAI: gpt-oss-120b (batch): AI model

Context window:
131,072 tokens
Input:
$0.03/1M tokens
Output:
$0.14/1M tokens
Type:
text
  • Tools
  • Streaming
  • Long context

Thinking levels: Always thinks · high · medium · low

OpenAI: gpt-oss-120b (batch) is a AI model from OpenAI, available through Hormouz via an OpenAI-compatible API with stable access from inside Iran.

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...

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-oss-120b:batch",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

VendorOpenAI
TypeText
Context window131,072 tokens
Pricing$0.03/M in · $0.14/M out
APIChat Completions
CapabilitiesStreaming · Tools

Benchmarks

11.6
Intelligence Index
Better than 19% of models we compared
30.4
Coding Index
Better than 33% of models we compared
3.7
Agentic Index
Better than 29% of models we compared

Reasoning

GPQA Diamond
Graduate-level scientific reasoning
78.2%
HLE
Humanity's Last Exam
19.6%
IFBench
Instruction-following
69%
AA-LCR
Long-context reasoning
52%
CritPt
Research-level physics reasoning
1.1%
AA Omniscience
Broad factual knowledge accuracy
21.8%
Non-Hallucination
Rate of avoiding fabricated answers
9.2%

Coding

SciCode
Python for scientific computing
34%
Terminal-Bench Hard
Agentic coding & terminal use
23.5%

Agentic

τ²-Bench
Tool-use agents in dual-control scenarios
65.8%
GDPval
Economically valuable tasks
5.6%

Source: Artificial Analysis

Design Arena

How Design Arena works ↗
3D
Top 96%
912Elo
Win rate: 29.4%Avg time: 16.9s
Code
Top 95%
969Elo
Win rate: 33.4%Avg time: 24.1s
Data Viz
Top 90%
995Elo
Win rate: 43.6%Avg time: 12.6s
Game Dev
Top 88%
1,005Elo
Win rate: 40.5%Avg time: 23.3s
UI Component
Top 94%
934Elo
Win rate: 35.7%Avg time: 16.2s
Website
Top 92%
974Elo
Win rate: 32.5%Avg time: 25.4s

Metrics sourced from Design Arena

Code example

cURL
curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-oss-120b:batch",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
Python
from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="openai/gpt-oss-120b:batch",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)
JavaScript
import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "openai/gpt-oss-120b:batch",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

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Updated 2026-10-13