OpenAI Codex vs Augment Code vs Diffblue Cover

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

Your tool
OpenAI Codex
vs
Competitor 1
Augment Code
Competitor 2
Diffblue Cover
Competitor 3
Suggested competitors for OpenAI Codex: Claude Code92% Cursor86% GitHub Copilot86% Jules85% CodeRabbit84% Gemini CLI82% Qodo (Formerly Codium)82% Google Antigravity80%
Compare
3 tools · best value per row highlighted
Your tool OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
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Competitor Augment Code
augmentcode.com
Augment Code is an agentic software development company whose Cosmos platform runs software agents across the development lifecycle.
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Competitor Diffblue Cover
diffblue.com
Diffblue Cover, now offered as the Diffblue Testing Agent, generates, verifies and fixes unit tests autonomously across enterprise codebases.
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Traffic estimated monthly website traffic
Monthly visits
204.3Mvisits/mo
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MoM change
▲ 3.6%
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6-month growth
+0.3%
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Global rank web
#212
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Avg. last 3 months
197.3M
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Bounce rate lower is better
58%
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Pages / visit
3.0
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Visit duration
2m 31s
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Traffic sources
● Direct 81% · ● Referral 17%
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OpenAI CodexAugment CodeDiffblue Cover
066.6M133.2M199.7M266.3MOpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3M100M1BOpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Paid
Starting price
$20per month · free tier available
$20per month
$1,500per month
Free tier
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Free trial
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API access
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Plans
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Standard $20/moBusiness $100/moEnterprise Custom
Starter package $1,500Enterprise Custom
Capabilities input → output
Input
CodeText
CodeText
Code
Output
Code
Code
Code
Skill level
Advanced
Advanced
Advanced
Categories
Development & CodeAI Code ReviewAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Code Review+2 more
Development & CodeAI Testing
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
6
9
Agents
Coding
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Code reviews
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Testing
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Code testing
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GitHub pull requests
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Test creation
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Test generation
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Unit tests
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GitHub automation
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Test automation
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Agent creation
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Code documentation
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Debugging
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Development
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Terminal
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Test cases
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 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.