Portkey vs CometAPI vs Langfuse vs FastRouter

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

Your tool
Portkey
vs
Competitor 1
CometAPI
Competitor 2
Langfuse
Competitor 3
FastRouter
Compare
4 tools · best value per row highlighted
Your tool Portkey
portkey.ai
Portkey puts a single API in front of more than 1,600 language models and wraps it with the controls a production AI team needs.
Remove
Competitor CometAPI
cometapi.com
CometAPI functions as an aggregation layer that sits between your application and hundreds of AI model providers
Make main Remove
Competitor Langfuse
langfuse.com
Langfuse is an open-source platform for observability and evaluation of AI agents and LLM applications.
Make main Remove
Competitor FastRouter
fastrouter.ai
This LLM gateway lets teams tap into over 100 AI models through one API endpoint
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
302.3Kvisits/mo
—
15.5Kvisits/mo
MoM change
—
▲ 9.9%
—
▼ 62.7%
6-month growth
—
-16.5%
—
+4.7%
Global rank web
—
#157,147
—
#1,733,591
Avg. last 3 months
—
295.7K
—
23.1K
Bounce rate lower is better
—
46%
—
45%
Pages / visit
—
2.9
—
1.5
Visit duration
—
38s
—
15s
Traffic sources
—
● Direct 69% · ● Referral 30%
—
● Direct 95% · ● Referral 5%
PortkeyCometAPILangfuseFastRouter
0208.6K417.2K625.8K834.4KCometAPI · 834.4KCometAPI · 619.7KCometAPI · 437.2KCometAPI · 362.2KCometAPI · 355.5KCometAPI · 362.7KCometAPI · 309.5KCometAPI · 275.2KCometAPI · 302.3KFastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5K1K10K100K1MCometAPI · 834.4KCometAPI · 619.7KCometAPI · 437.2KCometAPI · 362.2KCometAPI · 355.5KCometAPI · 362.7KCometAPI · 309.5KCometAPI · 275.2KCometAPI · 302.3KFastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5KDec '25Jan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$49per month · free tier available
$4per month · free tier available
$29per month · free tier available
$199per month · free tier available
Free tier
Free trial
–
–
–
API access
Plans
Developer FreeProduction $49/moEnterprise Custom
Free Trial FreePay-as-you-go Custom/usage-basedEnterprise Custom/mo
Hobby FreeCore $29/moPro $199/moTeams add-on $300/mo+1 more
Starter FreePro $199/moBusiness $799/moEnterprise Custom
Capabilities input → output
Input
Text
TextImages
DataText
TextImagesAudio
Output
TextData
VideoTextImages
Data
VideoTextImagesAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI APIAI Developer Tools+1 more
Development & CodeAI API
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeAI APIAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
11
6
12
6
Developer tools
APIs
–
LLM gateway
–
AI observability
–
–
AI system monitoring
–
–
Model routing
–
–
Prompt management
–
–
Monitoring
–
–
API integrations
–
–
API management
–
–
LLM management
–
–
LLM testing
–
–
–
Self hosted
–
–
–
Debugging
–
–
–
Generative AI evaluation
–
–
–
Image generation
–
–
–
LLM behavior analysis
–
–
–
Prompt security
–
–
–
Prompts
–
–
–
Video generation
–
–
–
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
–
–
–
–

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.