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Best smart contract development framework

4 models · updated 2026-07-19

The verdict

Foundry leads — All 4 models rank Foundry the top pick.

As of 2026-07-19, ChatGPT, Claude, Gemini and Grok collectively rank Foundry #1 for smart contract development framework on ModelsAgree — a unanimous pick. The models' case: Fast, portable EVM toolkit with excellent Solidity-native tests, fuzzing, invariant testing, forked-chain simulation, debugging, scripting, and deployment. The models' main caveat: Solidity-centric workflows are less convenient for teams wanting TypeScript-first integration tests and extensive plugin-driven customization.. The strongest alternative is Hardhat — Near-tie with Foundry: Hardhat 3 combines fast Rust-powered execution, Solidity and TypeScript tests, strong debugging, Ignition deployments,…. Source: https://modelsagree.com/best/best-smart-contract-development-framework (modelsagree.com, CC BY 4.0).

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Combined ranking

  1. 1
    GPT #1Claude #1Gemini #1Grok #1

    Fast, portable EVM toolkit with excellent Solidity-native tests, fuzzing, invariant testing, forked-chain simulation, debugging, scripting, and deployment; the strongest default for security-conscious Solidity teams.

    + model takes & fixes

    GPT Fast, portable EVM toolkit with excellent Solidity-native tests, fuzzing, invariant testing, forked-chain simulation, debugging, scripting, and deployment; the strongest default for security-conscious Solidity teams.

    Claude The de facto standard for EVM development — Solidity-native tests, best-in-class fuzzing and invariant testing, fast Rust toolchain (forge/cast/anvil/chisel), and forge scripts for deployment; most serious protocols and auditors work in it, so ecosystem examples, cheatcodes, and hiring all point here. Assumption: "typical practitioner" means EVM-first, which is still where most smart contract work happens.

    Gemini Blazing-fast Rust-native compilation and property-based fuzzing with unit tests written directly in Solidity, complemented by powerful RPC mainnet fork simulation and EVM cheatcodes. Assumes EVM development is the core focus. Flagged near-tie with Hardhat, but earns #1 due to superior test execution speed and security testing capabilities.

    Grok Dominant in 2026 for professional Solidity development due to exceptional speed in compilation/testing/fuzzing (Rust-based), superior gas optimization, Forge tooling for end-to-end workflows, and strong security focus for high-stakes DeFi/contracts; real-world adoption surge among serious practitioners.

    Where it falls short

    per GPT Solidity-centric workflows are less convenient for teams wanting TypeScript-first integration tests and extensive plugin-driven customization.

    per Claude Everything is Solidity/CLI-centric — teams needing JS/TS integration tests against their frontend stack, or non-EVM chains, get little help.

    per Gemini Lacks native TypeScript scripting out of the box, requiring external scripts or shell commands for complex off-chain deployment pipelines and web frontend integrations.

    per Grok Steeper learning curve for teams heavy on JS/TS tooling or needing seamless frontend/dApp integration (less plug-and-play than alternatives).

  2. 2
    Hardhat16 pts
    GPT #2Claude #2Gemini #2Grok #2

    Near-tie with Foundry: Hardhat 3 combines fast Rust-powered execution, Solidity and TypeScript tests, strong debugging, Ignition deployments, coverage, verification, and the broadest extensibility for full-stack EVM teams.

    + model takes & fixes

    GPT Near-tie with Foundry: Hardhat 3 combines fast Rust-powered execution, Solidity and TypeScript tests, strong debugging, Ignition deployments, coverage, verification, and the broadest extensibility for full-stack EVM teams.

    Claude The strongest TypeScript-based option; Hardhat 3's Rust-powered rewrite closed much of the speed gap, and its plugin ecosystem (ethers/viem, verification, deployment via Hardhat Ignition) plus console.log-style debugging make it the best fit for full-stack teams whose tests and tooling live in TS. Near-tie with Foundry for teams already in the Node ecosystem.

    Gemini Premier TypeScript and JavaScript EVM framework with an extensive plugin ecosystem, Hardhat Ignition deployment management, rich stack trace debugging, and seamless client SDK integration. Assumes complex off-chain scripting and deployment orchestration are prioritized.

    Grok Most mature, ecosystem-rich environment for complex EVM projects with excellent plugin system, deployment scripts, CI/CD integration, and broad compatibility; remains the go-to for teams blending contracts with full-stack dApps and production reliability.

    Where it falls short

    per GPT Its Node.js configuration and plugin surface create more dependency and migration complexity than Foundry’s cohesive toolchain.

    per Claude Test execution and fuzzing still trail Foundry, and JS-based tests add an abstraction layer between you and the EVM that pure-Solidity shops find unnecessary.

    per Gemini Significantly slower test suite execution and invariant fuzzing speeds compared to Rust-native alternatives like Foundry.

    per Grok Slower performance in testing/compilation compared to Foundry, especially on large codebases.

  3. 3
    Anchor12 pts
    GPT #3Claude #3Gemini #3Grok #3

    The most complete production framework for Solana programs, with Rust abstractions, account validation, IDL generation, typed clients, workspace tooling, testing, deployment, and security-oriented constraints.

    + model takes & fixes

    GPT The most complete production framework for Solana programs, with Rust abstractions, account validation, IDL generation, typed clients, workspace tooling, testing, deployment, and security-oriented constraints.

    Claude The clear default for Solana — Rust eDSL that eliminates huge amounts of unsafe boilerplate (account validation, serialization), IDL generation for clients, and a test harness; virtually the entire Solana program ecosystem is built on it, so it wins its chain outright on merit.

    Gemini The definitive standard framework for Solana (SVM) smart contract development, eliminating massive amounts of Rust boilerplate by auto-generating account serialization, security checks, and TypeScript client IDLs. Assumes Solana/SVM development is in scope.

    Grok Leading framework for Solana programs, dramatically reduces Rust boilerplate with macros, IDL generation, security checks, and streamlined testing/deployment; proven for high-throughput Solana ecosystems where speed and simplicity matter.

    Where it falls short

    per GPT It is Solana-specific and its abstractions can obscure account-model details developers must understand for optimization and security.

    per Claude Solana-only, and its macro-heavy abstractions can obscure compute-unit costs and low-level account handling that performance-critical programs eventually need to hand-tune.

    per Gemini Strictly locked to Solana and SVM runtime architectures; completely unusable for EVM or WASM chains.

    per Grok Solana-specific (not portable to EVM or other chains), with occasional framework-specific vulnerabilities requiring vigilance.

  4. 4
    Ape5 pts
    GPT #5Claude #4Gemini #4Grok

    The best Python-native framework — pytest-based testing, multi-chain plugin architecture, and first-class support for Vyper as well as Solidity; the natural choice for DeFi quant/data teams and Vyper shops where Python is the house language.

    + model takes & fixes

    Claude The best Python-native framework — pytest-based testing, multi-chain plugin architecture, and first-class support for Vyper as well as Solidity; the natural choice for DeFi quant/data teams and Vyper shops where Python is the house language.

    Gemini Modular Python-based framework (successor to Brownie) built specifically for data scientists, quantitative finance teams, and MEV researchers who require native Python contract testing, analytics, and transaction scripting. Assumes Python stack integration is required.

    GPT A clean Python framework spanning compilation, testing, deployment, account management, contract interaction, and multiple EVM chains through a modular plugin architecture.

    Where it falls short

    per GPT Plugin quality and coverage vary, and its smaller practitioner ecosystem provides fewer integrations and examples than Foundry or Hardhat.

    per Claude Much smaller community and plugin surface than Foundry/Hardhat, so you hit undocumented edges sooner and hiring for it is harder.

    per Gemini Slower execution speeds than Rust-native tools and a smaller developer plugin ecosystem than Node/TypeScript frameworks.

  5. 5
    Wake3 pts
    GPT #4Claude Gemini #5Grok

    A security-first Solidity framework offering pytest-based testing, property fuzzing, vulnerability detectors, typed Python contract interfaces, fork testing, code analysis, and strong editor integration.

    + model takes & fixes

    GPT A security-first Solidity framework offering pytest-based testing, property fuzzing, vulnerability detectors, typed Python contract interfaces, fork testing, code analysis, and strong editor integration.

    Gemini Unified Python-native framework by Ackee Blockchain that integrates Solidity unit testing, deployment scripting, vulnerability static analysis, and interactive call-trace debugging into a single toolchain.

    Where it falls short

    per GPT Its smaller ecosystem and Python-centric workflow make it less suitable for teams standardized on Solidity-only or TypeScript tooling.

    per Gemini Lower overall adoption and smaller community-contributed plugin base compared to Foundry and Hardhat.

  6. 6
    Sui Move1 pts
    GPT Claude #5Gemini Grok

    The most mature non-EVM, non-Solana stack — the Move language's resource model prevents whole classes of asset bugs by construction, and Sui's CLI/test framework plus Move Prover-style verification give strong safety guarantees for teams choosing an object-centric chain. Ranked on merit within its niche, not ecosystem size.

    + model takes & fixes

    Claude The most mature non-EVM, non-Solana stack — the Move language's resource model prevents whole classes of asset bugs by construction, and Sui's CLI/test framework plus Move Prover-style verification give strong safety guarantees for teams choosing an object-centric chain. Ranked on merit within its niche, not ecosystem size.

    Where it falls short

    per Claude Only relevant if you've already committed to Sui/Move — skills, auditors, and libraries are scarce compared to the EVM world, and nothing transfers directly.

Just missed the top 5

GPT Scaffold-ETH 2excellent rapid dapp starter, but an opinionated application scaffold rather than the strongest standalone contract framework · Remix IDEexceptionally accessible for learning and quick experiments, but weaker for large, reproducible, CI-heavy production projects

Claude Truffleformally sunset by Consensys with users migrated to Hardhat — historically important, no longer a credible 2026 pick

Gemini Scaffold-ETH 2Functions primarily as a full-stack dApp prototyping starter kit rather than a dedicated core smart contract dev framework · Remix IDEExceptional for browser-based learning and quick contract prototyping, but lacks local production CI/CD automation and advanced testing capabilities

Grok OpenZeppelin Contractsinvaluable audited library but not a full dev framework—best as complement

By model

ChatGPT

  1. 1.Foundry
  2. 2.Hardhat
  3. 3.Anchor
  4. 4.Wake
  5. 5.Ape

Claude

  1. 1.Foundry
  2. 2.Hardhat
  3. 3.Anchor
  4. 4.Ape
  5. 5.Sui Move

Gemini

  1. 1.Foundry
  2. 2.Hardhat
  3. 3.Anchor
  4. 4.Ape
  5. 5.Wake

Grok

  1. 1.Foundry
  2. 2.Hardhat
  3. 3.Anchor

Common questions

What is the best smart contract development framework according to AI models?

Foundry leads. All 4 models rank Foundry the top pick. The current top 3: Foundry, Hardhat, Anchor. Ranked by asking ChatGPT, Claude, Gemini, Grok the same buying question and merging their top-5 picks, updated 2026-07-19. Source: modelsagree.com.

Which smart contract development framework did each AI model pick first?

ChatGPT: Foundry. Claude: Foundry. Gemini: Foundry. Grok: Foundry.

How is this smart contract development framework ranking made?

ChatGPT, Claude, Gemini, Grok are each asked the same buying question in a fresh session with no system steering. Their top-5 answers are merged (rank 1 = 5 pts … rank 5 = 1 pt) into the consensus ranking, re-polled weekly and tracked over time.

More on how polling works: full methodology →

This ranking moves

We re-poll all four models weekly. Get one short email when a #1 flips.

Cite this ranking

ModelsAgree, “Best smart contract development framework” — merged ranking from ChatGPT, Claude, Gemini & Grok, polled 2026-07-19. https://modelsagree.com/best/best-smart-contract-development-framework (CC BY 4.0)

Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled weekly