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Arena AI competitors & alternatives
The 12 closest competitors and alternatives to Arena AI among artificial intelligence companies — ranked by similarity to what Arena AI actually does, not by market-cap band.
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About Arena AI
Arena AI provides a crowdsourced platform for ranking large language models and evaluating AI capabilities through interactive leaderboards and battles.
Arena AI at a glance
Arena AI is an artificial intelligence company headquartered in United States. It has raised at least $250M across the 2 funding rounds on record. Its most recent funding round, Series A, raised $150M in January 2026.
Arena AI funding rounds
At least $250M raised across the 2 rounds on record. Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series A | $150M | 9 named | |
| Series A | $100M | 8 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Top 12 Arena AI competitors
Ranked by semantic similarity — how close each company is to Arena AI by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
AI/ML
TensorTest provides private evaluations, reinforcement learning environments, and training data for artificial intelligence labs to test and train agents on real creative jobs. Its initial focus is on video editing through its platform TimelineBench, which uses professional editors' standards to evaluate agent performance on complete editing tasks.
Similar artificial intelligence company
OpenTrain AI operates a talent network and platform that connects artificial intelligence companies with pre-vetted domain experts for tasks such as data labeling, RLHF, red teaming, and model evaluation.
AI/ML
Toloka provides data solutions and training data for AI agents and large language models, serving artificial intelligence development teams. The company offers specialized training datasets, simulated environments, and evaluation and red-teaming services to assess and improve agent performance.
AI/ML
Snorkel AI builds specialized training data, benchmarks, and evaluation environments. These tools help frontier models and agents perform effectively in high-stakes domains.
AI/ML
Scale provides data, evaluations, and AI systems for enterprises, governments, and AI labs. The company offers solutions across the AI stack, including training data generation and human-in-the-loop application deployment.
AI/ML
Mundo AI develops data, evaluations, and applied research for frontier labs and artificial intelligence companies. Its offerings focus on advancing perceptual intelligence across audio, video, and emerging modalities.
Similar artificial intelligence company
Arena AI provides a benchmarking platform and leaderboard for evaluating large language models through crowdsourced evaluations and battle modes.
AI/ML
CoArena provides a benchmarking platform and evaluation arena for computer-use AI agents. It offers live tasks, blind human judgment, and published metrics to test and compare the performance of AI agents on real-world tasks.
AI/ML
Design Arena is a software development company headquartered in San Francisco, California. It operates the world's first crowdsourced benchmark for AI-generated design and visuals, providing the same creative prompts to top AI models and showcasing their results.
AI/ML
Artificial Analysis is a technology and information company headquartered in San Francisco, California, focused on building the future of AI benchmarking and analysis for models and API providers.
AI/ML
LLM Stats is a platform that indexes over 601 AI and LLM benchmarks across various domains, including reasoning, coding, math, vision, and tool use. It also aggregates the latest news, updates, and releases concerning LLMs and AI models.
Similar artificial intelligence company
AIcrowd is a platform that crowdsources artificial intelligence solutions by organizing challenges and facilitating research to solve real-world problems. It provides a collaborative environment for participants to tackle AI-related tasks and competitions.
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