OpenRouter vs OpenAI API vs Stack AI

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
OpenRouter
vs
Competitor 1
OpenAI API
Competitor 2
Stack AI
Competitor 3
Suggested competitors for OpenRouter: FastRouter90% CometAPI90% APIMart86% Together AI85% AnyApiAI85% DDefapi84% APIPASS84% Eden AI80%
Compare
3 tools · best value per row highlighted
Your tool OpenRouter
openrouter.ai
Every model, one endpoint
Remove
Competitor OpenAI API
platform.openai.com
The API powering the AI ecosystem
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
22Mvisits/mo
15.2Mvisits/mo
6.3Kvisits/mo
MoM change
▲ 14.6%
▲ 4.6%
▼ 57.9%
6-month growth
+39.6%
-2.4%
-93.7%
Global rank web
#2,023
—
#1,700,092
Avg. last 3 months
19.5M
15.2M
13.9K
Bounce rate lower is better
32%
34%
39%
Pages / visit
7.7
5.4
1.8
Visit duration
6m 13s
3m 56s
14s
Traffic sources
● Direct 89% · ● Referral 10%
● Direct 82% · ● Referral 15%
—
OpenRouterOpenAI APIStack AI
05.5M11M16.5M22MOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MOpenAI API · 18.7MOpenAI API · 16.7MOpenAI API · 16.5MOpenAI API · 15.6MOpenAI API · 15.9MOpenAI API · 15.1MOpenAI API · 15.7MOpenAI API · 14.6MOpenAI API · 15.2MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3K1K10K100K1M10M100MOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MOpenAI API · 18.7MOpenAI API · 16.7MOpenAI API · 16.5MOpenAI API · 15.6MOpenAI API · 15.9MOpenAI API · 15.1MOpenAI API · 15.7MOpenAI API · 14.6MOpenAI API · 15.2MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Starting price
Free tier
—
Free tier
Free tier
–
Free trial
–
API access
–
Plans
Free FreeStandard Custom/moBusiness Custom/moEnterprise Custom
—
—
Capabilities input → output
Input
VideoTextImagesAudio
DocumentsImagesTextAudio
TextDocumentsData
Output
VideoTextImagesAudio
AudioCodeImagesTextVideo
Apps
Skill level
Advanced
Advanced
Intermediate
Categories
Development & CodeAI APILarge Language Models (LLMs)
Development & CodeAI APILarge Language Models (LLMs)
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
5
6
7
APIs
–
Large language models
–
Agents
–
–
LLM gateway
–
–
No-code
–
–
Workflows
–
–
Agent creation
–
–
Business automation
–
–
Developer tools
–
–
LLM development
–
–
Process automation
–
–
API integrations
–
–
Chatbot building
–
–
Development
–
–
Finance workflow automation
–
–
LLM comparison
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
0
0
0
Verified listing
–
–
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.