Top gpt-oss-120b Alternatives

OpenAI's open-weight large language model for high-performance reasoning and agentic tasks.

gpt-oss-120b

gpt-oss-120b

OpenAI's open-weight large language model for high-performance reasoning and agentic tasks.

Foundation Model
Large Language Model
Mixture of Experts

20 Similar Companies in Foundation Model

Ranked by total score and funding data on StartupHub.ai

OpenAI ChatGPT
OpenAI ChatGPT

OpenAI ChatGPT

AI research and deployment company developing advanced AI systems like ChatGPT and DALL-E.

Frontier AI Lab
AGI Research
$189.6B
San Francisco, United States
8689 employees
OpenAI Assistants API
OpenAI Assistants API

OpenAI Assistants API

AI research and deployment company building safe and beneficial artificial general intelligence.

Frontier AI Lab
AGI Research
$14.0B
San Francisco, United States
8616 employees
NVIDIA Corp
NVIDIA Corp

NVIDIA Corp

Global technology company renowned for its GPUs, SoCs, and APIs, driving advancements in AI, gaming, and high-performance computing.

AI Chip
AI Hardware
$20.0M
Santa Clara, United States
47325 employees
Claude
Claude

Claude

An AI assistant for complex tasks.

Artificial Intelligence
Machine Learning
$6.2B
San Francisco, California, USA
5 employees
Meta AI
Meta AI

Meta AI

Meta's division dedicated to advancing AI research and developing AI models and tools.

Frontier AI Lab
AGI Research
$45.3B
Menlo Park, United States
X

xAI

xAI is Elon Musk AI company building Grok, a large language model integrated into X (Twitter) and Tesla.

Frontier AI Lab
AGI Research
$84.7B
Palo Alto, United States
20 employees
AI Coding Assistants (e.g., GitHub Copilot, Cursor)
AI Coding Assistants (e.g., GitHub Copilot, Cursor)

AI Coding Assistants (e.g., GitHub Copilot, Cursor)

AI-first code editor that helps developers build faster with AI assistance.

AI Coding Assistant
AI Copilot
$54.0M
New York, United States
831 employees
Agent Bricks
Agent Bricks

Agent Bricks

A platform for building and deploying AI agents for Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO).

Agentic AI
AI Agent
San Francisco, United States
15322 employees
Casetext (CoCounsel)
Casetext (CoCounsel)

Casetext (CoCounsel)

Casetext is a legal research platform that uses generative AI to help lawyers find and analyze legal information faster.

LegalTech
Generative AI
$70.0M
New York, USA
36522 employees
Gretel.ai
Gretel.ai

Gretel.ai

Synthetic data generation platform for privacy-preserving AI development.

Synthetic Data Generation
Data Privacy
$27.0M
San Francisco, United States
46974 employees
MosaicML (now Databricks)
MosaicML (now Databricks)

MosaicML (now Databricks)

Generative AI platform for enterprises to build, train, and customize their own AI models.

Foundation Model
Large Language Model
$33.7M
San Francisco, United States
15080 employees
iMerit
iMerit

iMerit

AI data solutions company providing annotation, validation, and fine-tuning for machine learning.

AI Foundation & Compute
Foundation Model
$43.5M
San Jose, United States
7602 employees
Perplexity AI
Perplexity AI

Perplexity AI

AI-powered search engine that delivers real-time, cited answers to complex questions.

Search Engine
Large Language Models
$591.4M
San Francisco, United States
1477 employees
Ineffable Intelligence
Ineffable Intelligence

Ineffable Intelligence

AI startup focused on reinforcement learning technologies.

Frontier AI Lab
Reinforcement Learning
$2.1B
London, United Kingdom
11 employees
Isomorphic Labs
Isomorphic Labs

Isomorphic Labs

AI-driven drug discovery spinoff from DeepMind using AlphaFold to discover novel medicines.

Drug Discovery
Biotechnology
$4.7B
London, United Kingdom
Runway AI
Runway AI

Runway AI

Runway AI is a generative AI research company creating tools for video, image, and multimedia content generation.

Generative AI
Foundation Model
$1.2B
New York, United States
481 employees
Ricursive Intelligence
Ricursive Intelligence

Ricursive Intelligence

AI tools that design chips.

AI Hardware
Chip Design
$975.0M
New York, United States
kling 3.5
kling 3.5

kling 3.5

Kuaishou's generative AI service for creating videos from text and image descriptions.

Generative AI
AI Video Generation
$2.0B
Beijing, China
Cognition AI
Cognition AI

Cognition AI

Building Devin, the first autonomous software engineer, to act as an exponential collaborator for human engineers.

AI Coding Assistant
AI Copilot
$615.0M
San Francisco, United States
5 employees
Lovable
Lovable

Lovable

Lovable is a platform that allows users to build apps and websites by chatting with AI.

No-Code/Low-Code
AI App Builder
$880.2M
Stockholm, Sweden
233 employees

About gpt-oss-120b and Alternatives

gpt-oss-120b is a Foundation Model company openai's open-weight large language model for high-performance reasoning and agentic tasks.. If you're evaluating Foundation Model solutions, these 20 alternatives offer similar capabilities and market positioning. StartupHub.ai tracks funding, team composition, and competitive positioning across 11,000+ AI startups to help you make informed decisions. Browse each profile to compare founders, investors, and funding history.