AI · alternatives · 2026
24 alternatives to Verta GenAI Workbench. Like custom GPTs but w/model choice & evals
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Verta GenAI Workbench. Like custom GPTs but w/model choice & evals launched in 2023; newer entries below may have overtaken it.
- 1
- 2
Experiment, evaluate and launch a GenAI app in <10 minutes
2023 · its alternatives →
- 3
V7 Go▲357Automate multi modal tasks using GenAI, reliably, at scale
2024 · v7labs.com · its alternatives →
- 4
PromptForge▲474PromptForge: Open-source AI prompt engineering workbench with systematic evaluation I built PromptForge after getting frustrated with the manual trial-and-error approach to prompt engineering. Most tools are just text editors, but I wanted something that brings software engineering discipline to prompt development. Key technical features: - AI-assisted prompt generation (stop starting from scratch) - Systematic evaluation engine that auto-generates test suites - Multi-model support (Claude, GPT-4, Azure OpenAI) - Go backend with SQLite for performance and simplicity - One-line Docker…
2025 · github.com · its alternatives →
- 5
- 6
Promptic▲114Optimize GenAI applications for quality and cost
Sep 2026 · promptic.eu · its alternatives →
- 7
Hey Hacker News! Launching gptengineer.app into beta today. It's like Claude Artifacts, but: - you can edit the code in your fav IDE (two-way github sync) - installs npm packages - automatically picks up build and runtime errors and fixes them - very fast, built with rust The full stack capabilities are built on supabase (prefer to not have to handle auth + user data at this point so this is owned by the user) The seed for this project was an open source experiment, posted about that previously here: https://news.ycombinator.com/item?id=36422730 Would love feedback if you give…
2024 · gptengineer.app · its alternatives →
- 8
Agent tooling for generative LEGO models building, built with Astra and Opus 5.5, powered by Jev - anteloc/ldraw-nova
25d ago · github.com · its alternatives →
- 9
Modo▲148I’ve built hardware projects for years, and the gap between “I want X” and “parts ordered, files ready to print” always took weeks. Modo compresses that. Describe what you want (e.g. “a portable CO2 monitor with a display and buzzer”) and it generates: - A bill of materials with real components (MPNs, not hallucinated parts) - A printable enclosure generated from actual part dimensions - Wiring diagrams, firmware boilerplate, and assembly instructions - Design validation (power budget, pin conflicts, mechanical fit) Everything streams in real time as each phase completes. The key idea is…
Jan 2026 · modo.is · its alternatives →
- 10
- 11
- 12
PixelFlowfree tier, from $10/mo▲34Drag, Drop, Deploy: Image and Video GenAI workflows
2024 · segmind.com · its alternatives →
- 13
RagMetrics▲13We built live AI evaluation to detect hallucinations, grounding issues, and drift as outputs are generated. This helps teams move GenAI from pilots into production.
2025 · ragmetrics.ai · its alternatives →
- 14
Hi everyone started this project a year ago to generate the CAD for a Jet Engine Axial Compressor. I am now open sourcing this tool that can take in a JSON file with specs and generate the CAD assembly. Still has a lot of work to improve designs but there isn't anything the Open Source community can't accomplish!
2023 · github.com · its alternatives →
- 15
Making AI Simple and Accessible for everyone
2023 · digiforge.in · its alternatives →
- 16
I'd like to share a new workbench I've been working on called DiffCAD. Coming from a software engineering background, not having the ability to properly diff my CAD model changes was driving me crazy. This project scratches my own itch, and maybe someone elses', too! I'm open to feedback, ideas, and contributions. Cheers!
May 2026 · github.com · its alternatives →
- 17IB
After fine-tuning GPT for a personal project, I realized how tedious it is to write plain text in a massive JSON file. That's why I built this app for my own use, and I want to see if others could benefit from a tool like this as well ;)
2024 · finetuna-ui.com · its alternatives →
- 18
- 19
Hey HN, After GPT-3 created waves in the tech industry, a lot of AI tools were emerging and with that, some AI website builders But the results seemed way too generic to us. It felt like the developers were rushing to catch the wave instead of building a proper tool We took our time, did months of RnD and finally came up with something better than what others in the market are doing. It’s got better design output. While it’s still in beta, I wanted to show HN what we did. Will appreciate the feedback when you guys try it out. Here is the link to signup for the beta:…
2024 · dorik.com · its alternatives →
- 20IM
Hey guys, I made a VS Code extension, within which you can use the Mixtral 8x7B AI model for free. Mixtral 8x7B is a new AI model from the Mistral family, which outperforms GPT-3 in many benchmarks, a fact that I have personally confirmed in daily coding tasks, where Mistral 8x7B was the clear winner. You can use all the AI features, such as AI Lens with custom instructions and similar. I'm pretty sure some of features will be useful to you. I'd appreciate both, positive and negative feedback!
2023 · marketplace.visualstudio.com · its alternatives →
- 21
Velokey▲4One OpenAI-compatible API for GPT, Claude, Gemini, Flux, Kling and 100+ models. Compare pricing, switch instantly, pay per token.
Jul 2026 · velokey.ai · its alternatives →
- 22
Refract▲4Build it visually. Build it with AI. Ship it in one line.
Mar 2026 · refract.build · its alternatives →
- 23IM
Hi guys, For my startup at www.mithrin.ai which is about create AI Chatbot Agents for websites, I wanted to create some free tools to attract traffic to the site and decided to create specialized chatbots powered by LLMs, similar to OpenAI's Custom GPTs. I realized that by using gpt-4o-mini, I could create quite powerful alternatives to GPTs that are free to the public for a very small cost (given how cheap the model api cost is). I've employed some throttling to prevent abuse and to avoid being charged too much. Then I integrated this with my main service and allowed users to use the…
2024 · mithrin.ai · its alternatives →
- 24
The best generative AI text, image, video, and audio
2025 · gptproto.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →