# Sail Research vs Boundless

> Sail Research discounts open models for work that can wait. Boundless sells open and closed models per token and puts latency targets in reserved contracts.

Canonical: https://www.subconscious.dev/compare/sail-research-vs-boundless · By The Subconscious Team · Updated October 29, 2026

## How they compare

Sail serves open models such as Kimi K2.6, GLM-5.3 and GPT-OSS 120B, plus customer LoRA fine-tunes, and prices by completion window. Its docs put the default asap window 30 to 70% below other hosts and the off-peak flex window 55 to 85% below. Sailboxes give long-running agents persistent compute. Boundless lists fixed per-token prices, such as GLM-5.3 at $1.12 in and $3.52 out per million tokens, and resells GPT and Claude models on the same API. It offers no fine-tuning. Its reserved tier is tuned by Boundless engineers and run against uptime, throughput and time-to-first-token targets in the contract. Both work with OpenAI and Anthropic SDKs.

Sail is the pick for background agents, evals and batch work where a slower turn is fine and cost comes first, and for serving your own LoRA. Boundless fits teams that need GPT or Claude next to open models, or contracted latency on reserved capacity, which they can test free for two weeks on their own traffic.

## What each one does

### Sail Research

Sail Research sells throughput over latency. Founders Neil Movva and Samir Menon built a serving stack that packs as much work as possible into every GPU, and customers state how long they can wait through completion windows. Its docs quote each window against traditional providers: the default asap window serves at low latency for 30 to 70% less, balanced for 45 to 80% less, and the off-peak flex window for 55 to 85% less. Batch requests default to flex, and LoRA and custom-tool requests default to balanced.

### Boundless

Boundless launched in September 2026 as an inference partner for AI-native startups. It sells two things. The Model API serves pre-tuned models on shared capacity, billed per token from prepaid credits with a budget per API key. Tailored inference reserves capacity for one customer, and Boundless engineers pick the model on the customer’s own evals, tune precision, batching, caching, speculative decoding and parallelism, then run the deployment against uptime, throughput and latency targets written into the contract. A free two-week evaluation tests those targets on real traffic against the customer’s current provider first.

## Which is best, and when

### Choose Sail Research for

- Cheaper rates for flexible latency
- Hours-long background agents
- Serving customer LoRA fine-tunes

### Choose Boundless for

- GPT and Claude beside open models
- Contracted time-to-first-token targets
- A free two-week trial on live traffic

## At a glance

| Attribute | Sail Research | Boundless |
|---|---|---|
| Model access | Open weights | Open weights, plus closed GPT and Claude |
| Flagship models | Kimi K2.6, GLM-5.3, GPT-OSS 120B | GLM-5.3, DeepSeek V4.1 Flash, Kimi K3 |
| Speed | Low-latency default; slower windows cheaper | 342 tok/s on DeepSeek V4.1 Flash 1017 (Vercel) |
| Price | 30–85% below other hosts by completion window | $0.04–$2.30 in, $0.21–$11.40 out per 1M (open) |
| Customization | Customer LoRA fine-tunes | Serving-stack tuning, no fine-tuning |
| Deployment | API plus Sailboxes | Serverless API, reserved tailored capacity |
| Long context | Varies by model | 1M context on most models |

## FAQ

### What is the difference between Sail Research and Boundless?

Sail Research discounts open models for work that can wait. Boundless sells open and closed models per token and puts latency targets in reserved contracts.

### When should I choose Sail Research over Boundless?

Cheaper rates for flexible latency; Hours-long background agents; Serving customer LoRA fine-tunes.

### When should I choose Boundless over Sail Research?

GPT and Claude beside open models; Contracted time-to-first-token targets; A free two-week trial on live traffic.

### Is Sail Research or Boundless cheaper?

Sail Research: 30–85% below other hosts by completion window. Boundless: $0.04–$2.30 in, $0.21–$11.40 out per 1M (open). The cheaper choice depends on the model and workload.

### Which has more context, Sail Research or Boundless?

Sail Research: Varies by model. Boundless: 1M context on most models.

## Running long-horizon agents?

If your agents run past 200K tokens, compare both against Subconscious: [Subconscious vs Sail Research](https://www.subconscious.dev/compare/subconscious-vs-sail-research.md), [Subconscious vs Boundless](https://www.subconscious.dev/compare/subconscious-vs-boundless.md).

Full profiles: [Sail Research](https://www.subconscious.dev/providers/sail-research.md), [Boundless](https://www.subconscious.dev/providers/boundless.md).