Index.dev vs Neurons Lab: full comparison for 2026
Quick verdict
Index.dev (4.5/5) edges ahead of Neurons Lab (4.1/5) overall. Index.dev is the better choice for startups that want their money back if the first month doesn't work. Neurons Lab is the stronger option for financial firms that want flexible, short engagements with LLM specialists. The right choice depends on your project size, budget, and required tech stack.
Index.dev vs Neurons Lab: head-to-head summary
| Criterion | Index.dev | Neurons Lab |
|---|---|---|
| Founded | 2019 | 2019 |
| HQ | London, United Kingdom | London, United Kingdom |
| Team size | 30,000+ network | 50–200 staff; 500+ network |
| Rating | 4.5 / 5 | 4.1 / 5 |
| Primary differentiator | A refundable 30-day trial on every placement, plus direct hire | Network model that makes short and part-time engagements easy |
| Pricing model | Monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request | Monthly per engineer or project fee; rates on request |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, PyTorch, LangChain | Python, LangChain, OpenAI |
| Industries served | SaaS, Fintech, E-commerce, AI labs, Healthcare | Financial services, Insurance, Healthcare, Cleantech, Retail |
Index.dev vs Neurons Lab: overview
Index.dev
Index.dev, legally Index Soft Limited, is a London talent platform that its job ads date to 2019. Its buying terms are the clearest of any network here: every placement carries a 30-day trial with a full refund if the match fails. You can contract one engineer, build a dedicated offshore team or hire someone directly. The main pool of more than 30,000 engineers sits in Latin America and Central and Eastern Europe, and a separate AI unit supplies Master's and PhD-level people for fine-tuning and retrieval work. Vetting runs through five stages with human reviewers.
Neurons Lab
Neurons Lab was founded in London in 2019 and keeps a small core staff while drawing on a distributed network of more than 500 engineers, according to its site. That arrangement makes it easy to buy a specialist for a short stretch or part of each week, which an employer-only model makes harder. Its clients include banks and insurers, and it holds an AWS generative AI competency. Continuity is the trade-off, because network members are not employees.
Services and capabilities: Index.dev vs Neurons Lab
| Capability | Index.dev | Neurons Lab |
|---|---|---|
| Full-time dedicated engineers | ✓ | ✓ |
| Part-time / fractional experts | ✗ | ✓ |
| Dedicated team | ✓ | ✓ |
| Trial before commitment | ✓ | ✗ |
| Published rates | ✗ | ✗ |
| Direct hire option | ✓ | ✗ |
| Subscription or output-based pricing | ✗ | ✗ |
| Nearshore time-zone overlap | ✓ | ✗ |
| LLM / GenAI engineers | ✓ | ✓ |
| MLOps | ✗ | ✗ |
| Computer vision | ✗ | ✗ |
| Data engineering | ✗ | ✗ |
Tech stack comparison: Index.dev vs Neurons Lab
| Framework / platform | Index.dev | Neurons Lab |
|---|---|---|
| PyTorch | ✓ | ✓ |
| TensorFlow | N/A | N/A |
| LangChain | ✓ | ✓ |
| Hugging Face | ✓ | N/A |
| OpenAI | ✓ | ✓ |
| AWS | ✓ | ✓ |
| Azure | N/A | N/A |
| Google Cloud | ✓ | N/A |
| Databricks | N/A | N/A |
| Kubernetes | N/A | N/A |
Pricing comparison: Index.dev vs Neurons Lab
| Criterion | Index.dev | Neurons Lab |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Full-time dedicated, Dedicated team, Direct hire, Trial period | Full-time dedicated, Part-time fractional, Project delivery |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Index.dev vs Neurons Lab
| Dimension | Index.dev | Neurons Lab |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | SaaS, Fintech, E-commerce | Financial services, Insurance, Healthcare |
| Best use cases | Trialling a Latin American LLM engineer for a month, Hiring a PhD-level specialist to fine-tune a model | Buying three months of an agent engineer's time, Adding a part-time LLM specialist to an insurer's team |
| Typical project type | Full-time dedicated | Full-time dedicated |
Index.dev vs Neurons Lab: pros and cons
| Index.dev | |
|---|---|
| + | A full refund in the first 30 days lowers the cost of a bad match |
| + | Contract and direct-hire routes from one provider |
| + | Talent in both U.S.-friendly and European time zones |
| - | Engineers are network members, not employees |
| - | Acceptance-rate figures are the company's own |
| - | No published monthly rates |
| Neurons Lab | |
|---|---|
| + | Part-time and short engagements are easy to arrange |
| + | Banking and insurance references |
| + | AWS generative AI competency |
| - | Network members are not employees |
| - | No published rates |
| - | Headcount estimates vary |
Who should choose Index.dev?
A typical fit: trialling a Latin American LLM engineer for a month.
A refundable 30-day trial on every placement, plus direct hire. Minimum engagement is not publicly disclosed. Works best with clients in SaaS, Fintech, E-commerce, AI labs, Healthcare.
Who should choose Neurons Lab?
A typical fit: buying three months of an agent engineer's time.
Network model that makes short and part-time engagements easy. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Insurance, Healthcare, Cleantech, Retail.
Decision matrix: Index.dev vs Neurons Lab
| Your situation | Recommended choice |
|---|---|
| You want one engineer full-time on a monthly contract | Both; Index.dev rates higher overall |
| You only need a specialist a few days a week | Neurons Lab |
| You want to test an engineer before committing | Index.dev |
| You need a rate before the first call | Neither publishes rates; ask both for a written rate card |
| Your budget is at the lower end | Compare: Index.dev (Not published) vs Neurons Lab (Not published) |
| You may want to hire the engineer permanently later | Index.dev |
| You want several engineers working as one team | Neurons Lab |
Use case fit: Index.dev vs Neurons Lab
| Use case | Index.dev fit | Neurons Lab fit | Winner |
|---|---|---|---|
| Trialling a Latin American LLM engineer for a month | Strong | Limited | Index.dev |
| Hiring a PhD-level specialist to fine-tune a model | Strong | Limited | Index.dev |
| Buying three months of an agent engineer's time | Limited | Strong | Neurons Lab |
| Adding a part-time LLM specialist to an insurer's team | Limited | Strong | Neurons Lab |
Verdict: Index.dev vs Neurons Lab
Index.dev (4.5/5) is the stronger overall choice for most AI Staff Augmentation projects. A refundable 30-day trial on every placement, plus direct hire.
Neurons Lab (4.1/5) is worth a look if you need adding a part-time LLM specialist to an insurer's team. If your situation matches that, Neurons Lab is a competitive option.
Related comparisons
Index.dev vs Neurons Lab FAQ
Is Index.dev better than Neurons Lab?
Index.dev (4.5/5) scores higher overall, but "better" depends on your use case. Index.dev's strongest advantage: a full refund in the first 30 days lowers the cost of a bad match. Neurons Lab's strongest advantage: part-time and short engagements are easy to arrange.
How do Index.dev and Neurons Lab differ in pricing?
Index.dev uses monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request pricing. Neurons Lab uses monthly per engineer or project fee; 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: Index.dev or Neurons Lab?
Neurons Lab is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each provider before shortlisting.
What are the main differences between Index.dev and Neurons Lab?
Index.dev's primary differentiator is: a refundable 30-day trial on every placement, plus direct hire. Neurons Lab's primary differentiator is: network model that makes short and part-time engagements easy. They also differ in team size (30,000+ network vs 50–200 staff; 500+ network), minimum engagement (Not published vs Not published), and primary industries served (SaaS, Fintech vs Financial services, Insurance).
Verify all details directly with each provider before making a decision.