OpenRouter vs Google Antigravity vs Defapi vs FastRouter

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

Your tool
OpenRouter
vs
Competitor 1
Google Antigravity
Competitor 2
DDefapi
Competitor 3
FastRouter
Compare
4 tools · best value per row highlighted
Your tool OpenRouter
openrouter.ai
Every model, one endpoint
Remove
Competitor Google Antigravity
antigravity.google
Google Antigravity assumes you already think in agent-driven workflows
Make main Remove
Competitor DDefapi
defapi.org
You know how managing multiple AI provider integrations usually means maintaining separate codebases for each vendor
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
22Mvisits/mo
14Mvisits/mo
2.4Kvisits/mo
15.5Kvisits/mo
MoM change
▲ 14.6%
▼ 3.1%
▼ 42.6%
▼ 62.7%
6-month growth
+39.6%
-31.9%
-86.2%
+4.7%
Global rank web
#2,023
—
#4,650,820
#1,733,591
Avg. last 3 months
19.5M
15.4M
4.8K
23.1K
Bounce rate lower is better
32%
48%
36%
45%
Pages / visit
7.7
2.2
1.4
1.5
Visit duration
6m 13s
3m 35s
7s
15s
Traffic sources
● Direct 89% · ● Referral 10%
● Direct 58% · ● Referral 42%
—
● Direct 95% · ● Referral 5%
OpenRouterGoogle AntigravityDefapiFastRouter
05.5M11M16.5M22MOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MGoogle Antigravity · 12.1MGoogle Antigravity · 15.1MGoogle Antigravity · 15.9MGoogle Antigravity · 21.6MGoogle Antigravity · 20.5MGoogle Antigravity · 16.4MGoogle Antigravity · 21.5MGoogle Antigravity · 17.9MGoogle Antigravity · 14.4MGoogle Antigravity · 14MDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KFastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5K1K10K100K1M10M100MOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MGoogle Antigravity · 12.1MGoogle Antigravity · 15.1MGoogle Antigravity · 15.9MGoogle Antigravity · 21.6MGoogle Antigravity · 20.5MGoogle Antigravity · 16.4MGoogle Antigravity · 21.5MGoogle Antigravity · 17.9MGoogle Antigravity · 14.4MGoogle Antigravity · 14MDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KFastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Paid
Freemium
Starting price
Free tier
Free
—
$199per month · free tier available
Free tier
–
Free trial
–
–
–
–
API access
–
Plans
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
Starter FreePro $199/moBusiness $799/moEnterprise Custom
Capabilities input → output
Input
AudioVideoTextImages
TextCode
AudioTextImages
TextImagesAudio
Output
VideoTextImagesAudio
CodeApps
TextImagesAudio
VideoTextImagesAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI APILarge Language Models (LLMs)
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Development & CodeAI API
Development & CodeAI APIAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
5
9
4
6
APIs
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LLM gateway
–
–
API integrations
–
–
Development
–
–
API management
–
–
Developer tools
–
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Agents
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–
–
Coding
–
–
–
Model routing
–
–
–
Agent creation
–
–
–
Agent management
–
–
–
Code autocompletion
–
–
–
Large language models
–
–
–
Terminal
–
–
–
API security
–
–
–
Frontend development
–
–
–
LLM comparison
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 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.