
SpecialistBattle-test AI coding models side by side
SpecialistBattle-test AI coding models side by side
CalcForge records 31,360 monthly visits with -4.8% month-over-month growth and Free, Paid pricing. ModelFusion records 119 monthly visits with -88.2% growth and Freemium pricing.

Free LLM toolkit: cost calculators, prompts and model comparison
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | calcforge.com | modelfusion.io |
| Pricing Model | Free, Paid | Freemium |
| Monthly Visits | 31.36K (31,360) | 119 (119) |
| MoM Traffic Delta | -1.56K (-4.8%) | -885 (-88.2%) |
| Primary Market & Share | 🇮🇳 India (16.1%) | 🌐 Global (—) |
| Direct Visits / mo | 12.46K | 51 |
| User Rating | 4.3 | 4.2 |
| Supported Platforms | Website | Website |
Open-source engineering calculators for civil and structural design
Structural, geotechnical, tunnelling and contractor tools available free and open source on GitHub.
Searchable construction datasets covering high-rise buildings, bridges, tunnels, dams and housing.
Registered users get calculation workings, bending/shear/deflection diagrams and PDF export.
Four project-based pathways in Python, AI for construction, AI governance and building AI agents.

Free LLM toolkit: cost calculators, prompts and model comparison
Estimate API costs for GPT-4, Claude, Gemini and 25+ models and compare pricing across providers before you spend.
Access a large library of ready-made prompts and count tokens for any model to reduce cost and improve efficiency.
Find the best model for a use case and compare MMLU, HumanEval and other performance metrics interactively.
Chat with several AI models at once for side-by-side comparison, and upload PDFs or Word files to query them with AI.

SpecialistBattle-test AI coding models side by side
SpecialistBattle-test AI coding models side by side
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceFree practical deep learning courses, research and open-source libraries

SpecialistExpert human data and evaluation for training frontier AI

Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceFree open course for prompt engineering and AI security
Free / Open-sourceFree open course for prompt engineering and AI security

SpecialistA free prompt library and AI workflow hub for professionals
SpecialistA free prompt library and AI workflow hub for professionals

SpecialistIndependently scored open-source alternatives to paid SaaS
SpecialistIndependently scored open-source alternatives to paid SaaS

Courses and best practices for building AI-powered products end to end
Courses and best practices for building AI-powered products end to end
The bug bounty platform built for AI and ML security
The bug bounty platform built for AI and ML security
SpecialistA free community and toolbox for prompt engineers and AI builders
SpecialistA free community and toolbox for prompt engineers and AI builders

Free / Open-sourceOpen AI research for everyone — datasets, models and tools, free for all
Free / Open-sourceOpen AI research for everyone — datasets, models and tools, free for all