
Free / Open-sourceThe AI workspace where teams and agents get work done together

NOAN records 3,663 monthly visits with -15.7% month-over-month growth and Paid pricing. OpenAI Platform records 234,678,639 monthly visits with -9.6% growth and Paid pricing.

One API for your company's verified facts, read live by every agent
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | getnoan.com | openai.com |
| Pricing Model | Paid | Paid |
| Monthly Visits | 3.66K (3,663) | 234.68M (234,678,639) |
| MoM Traffic Delta | -684 (-15.7%) |
| -24.78M (-9.6%) |
| Primary Market & Share | 🇺🇸 United States (100%) | 🇺🇸 United States (25.4%) |
|---|
| Direct Visits / mo | 1.45K | 105.1M |
|---|
| User Rating | 4.4 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|

One API for your company's verified facts, read live by every agent
Each fact keeps its date, sources, and the person who verified it, so nothing is silently overwritten and agents can show the receipt behind an answer.
Scope one key per agent, app, or site and limit it to the stacks it needs, so the right keys read the right facts and nothing else.
Turn review on for a project or a single key so any write an agent proposes waits for a human to verify it before it can be read.
See your entire fact base as it stood on any past date, so you can answer what was true when a decision was made.

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Spanning GPT-6 Astra ($10/$50 per MTok), GPT-6.1 Sol ($2/$10), GPT-6.1 Terra ($1/$5), and GPT-6 Luna ($0.10/$0.50), all with a 1,050,000-token context window and 128K max output.
Tune thinking token budgets per API request across six granularity levels (`none`, `low`, `medium`, `high`, `xhigh`, `max`) to balance latency, accuracy, and cost.
Combine model inference with hosted web search, file search, function calling, and autonomous GUI computer-use actions in a single stateful API call.
Build ultra-low-latency multimodal voice agents billed per second ($0.05/minute) without rounding up to whole minutes.

Free / Open-sourceThe AI workspace where teams and agents get work done together


Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.
#2
Free / Open-sourceAlibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.

Unifies hundreds of third-party models under a single API key, offering greater model choice than OpenAI's curated catalog.

Provides developer APIs for Zhipu AI's proprietary GLM models, serving as an alternative enterprise foundation model stack.

Enterprise AI grounded in your company's own knowledge

SpecialistOptimized for lightning-fast serverless execution of generative media and image models, rather than general text LLMs.

Specializes in high-performance serverless inference and dedicated GPU clusters for open-source models, bypassing closed commercial restrictions.

Free / Open-sourceWeb search API and crawler built for AI agents

Free / Open-sourceSearch and inference APIs that give AI models real-time web data

SpecialistFocuses heavily on running and fine-tuning open-source vision and language models via simple APIs, unlike OpenAI's hosted closed models.
One OpenAI-compatible API for 500+ image, video, audio, and LLM models
Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.
Free / Open-sourceAlibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.
Unifies hundreds of third-party models under a single API key, offering greater model choice than OpenAI's curated catalog.
Provides developer APIs for Zhipu AI's proprietary GLM models, serving as an alternative enterprise foundation model stack.
SpecialistOptimized for lightning-fast serverless execution of generative media and image models, rather than general text LLMs.
Specializes in high-performance serverless inference and dedicated GPU clusters for open-source models, bypassing closed commercial restrictions.
Free / Open-sourceSearch and inference APIs that give AI models real-time web data
SpecialistFocuses heavily on running and fine-tuning open-source vision and language models via simple APIs, unlike OpenAI's hosted closed models.
One OpenAI-compatible API for 500+ image, video, audio, and LLM models