Toptal vs Index.dev: full comparison for 2026
Quick verdict
Toptal (4.5/5) edges ahead of Index.dev (4.2/5) overall. Toptal is the better choice for engineering leads who need one senior freelance ML specialist quickly and can pay a premium. Index.dev is the stronger option for startups that want a 30-day refundable trial before committing to a remote ML engineer. The right choice depends on your project size, budget, and required tech stack.
Toptal vs Index.dev: head-to-head summary
| Criterion | Toptal | Index.dev |
|---|---|---|
| Founded | 2010 | 2019 |
| HQ | Remote-first (no central office) | London, United Kingdom |
| Team size | Staff size not published; large freelance network | 30,000+ network |
| Rating | 4.5 / 5 | 4.2 / 5 |
| Primary differentiator | Multi-stage screening that ends with interviews by senior engineers and a test project | A 30-day trial with full refund on every placement |
| Pricing model | Freelance hourly or weekly rates set per engineer; no-risk trial period; rates on request | Monthly rate per engineer; direct-hire fee option; 30-day trial with refund; rates on request |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, PyTorch, TensorFlow | Python, PyTorch, TensorFlow |
| Industries served | Technology, Finance, Healthcare, Media, Retail | SaaS, Fintech, E-commerce, Healthcare, AI labs |
Toptal vs Index.dev: overview
Toptal
Toptal, founded in 2010 and run as a remote-first company, is a freelance marketplace rather than an employer, and its AI pool covers machine learning, generative AI, NLP and LLM work. Its screening is the most documented of any network here. The FAQ describes a process of three to eight weeks: an English and communication check, algorithm and computer science tests, several technical interviews with senior engineers, and a test project. Toptal says fewer than 3% of applicants get through. New engagements start with a no-risk trial period. The trade-off is price and continuity, because freelancers set their own rates and can leave for another client.
Index.dev
Index.dev is a London company, founded in 2019 according to its own job ads, trading under the legal name Index Soft Limited. It calls itself an AI-first engineering talent platform. Its main network has more than 30,000 engineers in Latin America and Central and Eastern Europe, and a separate AI unit supplies Master's and PhD-level people for LLM fine-tuning and RAG work. Every engineer goes through five stages of vetting run by people, including a live screening call and technical validation, and Index.dev says about 1% are accepted. All placements come with a 30-day trial and a full refund if the match fails.
Services and capabilities: Toptal vs Index.dev
| Capability | Toptal | Index.dev |
|---|---|---|
| ML engineers | ✓ | ✓ |
| LLM / GenAI engineers | ✓ | ✓ |
| AI agent developers | ✗ | ✗ |
| MLOps engineers | ✗ | ✗ |
| Computer vision engineers | ✗ | ✗ |
| NLP engineers | ✓ | ✗ |
| Data engineers | ✗ | ✗ |
| Engineer-led technical screen | ✓ | ✗ |
| Fractional / part-time experts | ✓ | ✗ |
| Trial before commitment | ✓ | ✓ |
| Nearshore time-zone overlap | ✗ | ✓ |
| Direct hire option | ✗ | ✓ |
Tech stack comparison: Toptal vs Index.dev
| Framework / platform | Toptal | Index.dev |
|---|---|---|
| PyTorch | ✓ | ✓ |
| TensorFlow | ✓ | ✓ |
| LangChain | ✓ | ✓ |
| Hugging Face | ✓ | ✓ |
| OpenAI | ✓ | ✓ |
| AWS | ✓ | ✓ |
| Azure | ✓ | N/A |
| Google Cloud | ✓ | ✓ |
| Databricks | N/A | N/A |
| Kubernetes | N/A | N/A |
Pricing comparison: Toptal vs Index.dev
| Criterion | Toptal | Index.dev |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Freelance contract, Fractional expert, Trial period | Dedicated engineer, Dedicated team, Direct hire, Trial period |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Toptal vs Index.dev
| Dimension | Toptal | Index.dev |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Technology, Finance, Healthcare | SaaS, Fintech, E-commerce |
| Best use cases | Hiring one senior NLP freelancer for a three-month search relevance project, Adding a part-time LLM specialist to review an in-house prototype | Trialling a Latin American ML engineer for a month before committing, Hiring a PhD-level specialist to fine-tune an open-source LLM |
| Typical project type | Freelance contract | Dedicated engineer |
Toptal vs Index.dev: pros and cons
| Toptal | |
|---|---|
| + | Engineer-run interviews and a test project are published parts of the screen |
| + | Part-time and hourly engagements are normal, so a ten-hour-a-week specialist is easy to arrange |
| + | The no-risk trial lets you stop early without paying if the match is wrong |
| - | Freelancers are not Toptal employees and may move on to other clients |
| - | Among the most expensive options on this page, and no public rate card |
| - | The screen is general software screening; there is no published ML-specific test |
| Index.dev | |
|---|---|
| + | The 30-day refundable trial is the most generous published trial on this page |
| + | A separate AI unit for advanced work such as fine-tuning |
| + | Clients can hire directly as well as contract |
| - | Vetting is human-led but not specifically run by ML engineers |
| - | Network figures and acceptance rates are company claims |
| - | Founding date only appears in job listings |
Who should choose Toptal?
A typical fit: hiring one senior NLP freelancer for a three-month search relevance project.
Multi-stage screening that ends with interviews by senior engineers and a test project. Minimum engagement is not publicly disclosed. Works best with clients in Technology, Finance, Healthcare, Media, Retail.
Who should choose Index.dev?
A typical fit: trialling a Latin American ML engineer for a month before committing.
A 30-day trial with full refund on every placement. Minimum engagement is not publicly disclosed. Works best with clients in SaaS, Fintech, E-commerce, Healthcare, AI labs.
Decision matrix: Toptal vs Index.dev
| Your situation | Recommended choice |
|---|---|
| You want a working engineer, not a recruiter, to run the technical screen | Toptal |
| You need one specialist for a few days a week | Toptal |
| You need several engineers working as one team | Neither lists dedicated teams; check team size before signing |
| You want to test an engineer before committing | Both; Toptal rates higher overall |
| Your budget is at the lower end | Compare: Toptal (Not published) vs Index.dev (Not published) |
| Your team works U.S. hours | Index.dev |
| You may want to hire the engineer permanently later | Index.dev |
Use case fit: Toptal vs Index.dev
| Use case | Toptal fit | Index.dev fit | Winner |
|---|---|---|---|
| Hiring one senior NLP freelancer for a three-month search relevance project | Strong | Strong | Both equally |
| Adding a part-time LLM specialist to review an in-house prototype | Strong | Limited | Toptal |
| Trialling a Latin American ML engineer for a month before committing | Limited | Strong | Index.dev |
| Hiring a PhD-level specialist to fine-tune an open-source LLM | Strong | Strong | Both equally |
Verdict: Toptal vs Index.dev
Toptal (4.5/5) is the stronger overall choice for most AI Engineer Staffing projects. Multi-stage screening that ends with interviews by senior engineers and a test project.
Index.dev (4.2/5) is worth a look if you need hiring a PhD-level specialist to fine-tune an open-source LLM. If your situation matches that, Index.dev is a competitive option.
Related comparisons
Toptal vs Index.dev FAQ
Is Toptal better than Index.dev?
Toptal (4.5/5) scores higher overall, but "better" depends on your use case. Toptal's strongest advantage: engineer-run interviews and a test project are published parts of the screen. Index.dev's strongest advantage: the 30-day refundable trial is the most generous published trial on this page.
How do Toptal and Index.dev differ in pricing?
Toptal uses freelance hourly or weekly rates set per engineer; no-risk trial period; rates on request pricing. Index.dev uses monthly rate per engineer; direct-hire fee option; 30-day trial with refund; rates on request pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Toptal or Index.dev?
Index.dev is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.
What are the main differences between Toptal and Index.dev?
Toptal's primary differentiator is: multi-stage screening that ends with interviews by senior engineers and a test project. Index.dev's primary differentiator is: a 30-day trial with full refund on every placement. They also differ in team size (Staff size not published; large freelance network vs 30,000+ network), minimum engagement (Not published vs Not published), and primary industries served (Technology, Finance vs SaaS, Fintech).
Verify all details directly with each company before making a decision.