LiteLLM vs Respan vs OpenRouter vs Vercel AI Gateway

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

Your tool
LiteLLM
vs
Competitor 1
Respan
Competitor 2
OpenRouter
Competitor 3
Vercel AI Gateway
Compare
4 tools · best value per row highlighted
Your tool LiteLLM
litellm.ai
LiteLLM is an open-source AI gateway and LLM proxy that puts more than 140 providers and 1,800 models behind one OpenAI-compatible API key.
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Competitor Respan
respan.ai
Building AI apps
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Competitor OpenRouter
openrouter.ai
Every model, one endpoint
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Competitor Vercel AI Gateway
vercel.com
Vercel AI Gateway is a single API endpoint for hundreds of AI models from OpenAI, Anthropic, SpaceXAI, open-source providers and more.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
87.3Kvisits/mo
22Mvisits/mo
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MoM change
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▲ 28.5%
▲ 14.6%
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6-month growth
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+881.1%
+39.6%
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Global rank web
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#497,399
#2,023
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Avg. last 3 months
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74.8K
19.5M
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Bounce rate lower is better
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41%
32%
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Pages / visit
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2.5
7.7
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Visit duration
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19s
6m 13s
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Traffic sources
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● Direct 89% · ● Referral 11%
● Direct 89% · ● Referral 10%
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LiteLLMRespanOpenRouterVercel AI Gateway
05.5M11M16.5M22MRespan · 641Respan · 8.9KRespan · 37.2KRespan · 57.9KRespan · 69.1KRespan · 67.9KRespan · 87.3KOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22M1001K10K100K1M10M100MRespan · 641Respan · 8.9KRespan · 37.2KRespan · 57.9KRespan · 69.1KRespan · 67.9KRespan · 87.3KOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Freemium
Starting price
Free
$199per month · free tier available
Free tier
$20per month · free tier available
Free tier
Free trial
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–
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API access
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Plans
Open Source FreeEnterprise Custom
Free FreeTeam $199/yrEnterprise Custom
Free FreeStandard Custom/moBusiness Custom/moEnterprise Custom
Hobby FreePro $20/moEnterprise Custom
Capabilities input → output
Input
Text
TextData
AudioVideoTextImages
TextImagesAudio
Output
TextData
TextData
VideoTextImagesAudio
VideoTextImagesAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI APIAI Developer Tools+1 more
Development & CodeProductivity & OfficeAI APIAI Developer Tools+1 more
Development & CodeAI APILarge Language Models (LLMs)
Development & CodeAI API
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
8
9
5
7
APIs
LLM gateway
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Developer tools
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Model routing
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LLM management
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Large language models
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API management
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AI system monitoring
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LLM testing
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Monitoring
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Prompt management
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Self hosted
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Application monitoring
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Development
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LLM comparison
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LLM development
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MCP
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Red teaming guidance
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.