LiteLLM vs OpenRouter vs Defapi 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
OpenRouter
Competitor 2
DDefapi
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 OpenRouter
openrouter.ai
Every model, one endpoint
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Competitor DDefapi
defapi.org
You know how managing multiple AI provider integrations usually means maintaining separate codebases for each vendor
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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.
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Traffic estimated monthly website traffic
Monthly visits
—
22Mvisits/mo
2.4Kvisits/mo
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MoM change
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▲ 14.6%
▼ 42.6%
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6-month growth
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+39.6%
-86.2%
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Global rank web
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#2,023
#4,650,820
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Avg. last 3 months
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19.5M
4.8K
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Bounce rate lower is better
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32%
36%
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Pages / visit
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7.7
1.4
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Visit duration
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6m 13s
7s
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Traffic sources
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● Direct 89% · ● Referral 10%
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LiteLLMOpenRouterDefapiVercel AI Gateway
05.5M11M16.5M22MOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4K1K10K100K1M10M100MOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Paid
Freemium
Starting price
Free
Free tier
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$20per month · free tier available
Free tier
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Free trial
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–
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API access
Plans
Open Source FreeEnterprise Custom
Free FreeStandard Custom/moBusiness Custom/moEnterprise Custom
Gemini 3.1 Pro Preview $1/$6/per requestClaude Sonnet 4.6 $1.5/$7.5/per requestClaude Opus 4.6 $2.5/$12.5/per requestSora 2 Stable $0.175+/per request+2 more
Hobby FreePro $20/moEnterprise Custom
Capabilities input → output
Input
Text
AudioVideoTextImages
TextImagesAudio
TextImagesAudio
Output
TextData
VideoTextImagesAudio
ImagesTextAudio
VideoTextImagesAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI APIAI Developer Tools+1 more
Development & CodeAI APILarge Language Models (LLMs)
Development & CodeAI API
Development & CodeAI API
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
8
5
4
7
APIs
LLM gateway
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API management
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Model routing
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LLM management
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Large language models
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Developer tools
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API integrations
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Self hosted
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API security
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Development
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LLM comparison
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MCP
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
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Saves
0
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0
0
Reviews
0
0
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0
Prompts
0
0
0
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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.