# Sail Research vs Wafer

> Both serve open models to coding agents, but in opposite directions. Wafer tunes stacks to run faster on the same weights. Sail Research runs slower on purpose to cut the price.

Canonical: https://www.subconscious.dev/compare/sail-research-vs-wafer · By The Subconscious Team · Updated September 30, 2026

## How they compare

Sail Research and Wafer make opposite bets on the same weights. Wafer's agents tune batching, decoding, quantization and kernels, and it reports Qwen 3.5 397B running 2.8x faster than stock SGLang. Sail packs as much work as possible into each GPU and asks customers how long they can wait, then discounts 30 to 80% off its asap price. Wafer sells a flat Wafer Pass from $10 a week for coding harnesses, plus dedicated deployments tuned to an SLO. Sail sells per-window pricing and Sailboxes for agents that run indefinitely.

The dividing line is whether a human is watching. A developer inside Claude Code or Cline wants the fast turn Wafer targets. A code-review agent that scans a repo for three to four hours without supervision, the kind Detail.dev runs on Sail, gains nothing from speed and a lot from the discount. Both are young. Wafer's speed numbers are self-reported against stock baselines, and Sail's 3x to 10x savings claim is its own. Both catalogs are open models only.

## 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. The priority window targets about a one-minute turn for roughly 30 to 50% off the immediate asap price. The default standard window targets about five minutes for 45 to 65% off. The flex window runs off-peak for 60 to 80% off.

### Wafer

Wafer builds AI agents that act as GPU performance engineers, then sells inference on the stacks those agents tune. The company came out of Y Combinator's Summer 2025 batch as a "Cursor for CUDA" that turned slow PyTorch into custom kernels. Founders Emilio Andere and Steven Arellano are based in San Francisco. Its agents profile a workload, generate candidate configs across batching, decoding, quantization, engines, kernels and hardware, measure each one and deploy the winner.

## Which is best, and when

### Choose Sail Research for

- Background agents with no human waiting on each turn.
- The lowest price per task when latency does not matter.
- Persistent agent sandboxes on the same platform.

### Choose Wafer for

- Interactive coding agents on big open models.
- Flat-rate weekly access for Claude Code and Cline.
- Dedicated endpoints with a strict latency SLO.

## At a glance

| Attribute | Sail Research | Wafer |
|---|---|---|
| Model access | Open weights | Open weights |
| Flagship models | Kimi K2.6, GLM-5, GPT-OSS 120B | Qwen 3.5 397B Turbo, GLM 5.1 Turbo |
| Speed | Minutes per turn by design | 2–2.8x vs stock vLLM or SGLang |
| Price | 30–80% off by completion window | Wafer Pass from $10 a week |
| Customization | Customer LoRA fine-tunes | Agent-tuned dedicated deployments |
| Deployment | API plus Sailboxes | Serverless pass, dedicated |
| Long context | Varies by model | Varies by model |

## FAQ

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

Both serve open models to coding agents, but in opposite directions. Wafer tunes stacks to run faster on the same weights. Sail Research runs slower on purpose to cut the price.

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

Background agents with no human waiting on each turn; The lowest price per task when latency does not matter; Persistent agent sandboxes on the same platform.

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

Interactive coding agents on big open models; Flat-rate weekly access for Claude Code and Cline; Dedicated endpoints with a strict latency SLO.

### Is Sail Research or Wafer cheaper?

Sail Research: 30–80% off by completion window. Wafer: Wafer Pass from $10 a week. The cheaper choice depends on the model and workload.

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

Sail Research: Varies by model. Wafer: Varies by model.

## 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 Wafer](https://www.subconscious.dev/compare/subconscious-vs-wafer.md).

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