# Cerebras vs Morph

> Morph is a specialist that merges coding edits at 10,500+ tokens per second. Cerebras is a general host that generates tokens fast. They stack.

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

## How they compare

Each sells speed, at a different step of a coding agent. Cerebras generates text fast in general, with GPT-OSS 120B near 3,000 tokens per second. Morph does one job extremely fast: a 7B model trained only on code merging takes a big model's edit snippet and applies it to the full file at 10,500+ tokens per second with up to 98% accuracy. Morph says this cuts tokens about 40% against full-file rewrites. Its lineup also includes WarpGrep for repo search, Compact for context compression and Reflex for classification.

They are not substitutes. Morph's own profile calls it a narrow tool that complements a main model. Cerebras could serve that main model when its shared catalog fits, though GPT-OSS 120B and Gemma 4 31B are the only shared options as of August 2026. A fast coding stack could run planning on Cerebras and merges on Morph, with tests to catch the 2 to 4% of merges that still fail.

## What each one does

### Cerebras

Cerebras builds a single chip the size of a silicon wafer, and its inference cloud is the fastest public host on the models it serves. Its developer table lists GPT-OSS 120B near 3,000 tokens per second, about six times Groq on the same weights, at $0.35 in and $0.75 out per million. The public shared catalog is thin, just GPT-OSS 120B and Gemma 4 31B as of August 2026. More model families live on dedicated endpoints and through partners like OpenRouter, Hugging Face, Vercel and AWS Marketplace.

### Morph

Morph builds small, very fast specialist models that sit beside a big coding model inside an agent. Its flagship is Fast Apply. The frontier model writes only the changed lines with // ... existing code ... markers, and Morph merges them into the full file at 10,500+ tokens per second with up to 98% accuracy. It is the same idea behind Cursor's instant apply, offered as an OpenAI-compatible API.

## Which is best, and when

### Choose Cerebras for

- Fast general generation for the main coding model
- Live code autocomplete
- Long outputs on GPT-OSS 120B

### Choose Morph for

- Applying edits to large files at 10,500+ tokens per second
- Cutting output tokens from full-file rewrites
- Repo search and context compression beside a main model

## At a glance

| Attribute | Cerebras | Morph |
|---|---|---|
| Model access | Open weights | Specialist models |
| Flagship models | GPT-OSS 120B, Gemma 4 31B | morph-v3-fast, morph-v3-large |
| Speed | ~3,000 tok/s on GPT-OSS 120B | 10,500+ tok/s Fast Apply |
| Price | $0.35 in, $0.75 out (GPT-OSS 120B) | ~40% fewer tokens than full rewrites |
| Customization | - | Fine-tuning offered |
| Deployment | Shared API, dedicated, partners | OpenAI-compatible API |
| Long context | - | - |

## FAQ

### What is the difference between Cerebras and Morph?

Morph is a specialist that merges coding edits at 10,500+ tokens per second. Cerebras is a general host that generates tokens fast. They stack.

### When should I choose Cerebras over Morph?

Fast general generation for the main coding model; Live code autocomplete; Long outputs on GPT-OSS 120B.

### When should I choose Morph over Cerebras?

Applying edits to large files at 10,500+ tokens per second; Cutting output tokens from full-file rewrites; Repo search and context compression beside a main model.

### Is Cerebras or Morph cheaper?

Cerebras: $0.35 in, $0.75 out (GPT-OSS 120B). Morph: ~40% fewer tokens than full rewrites. The cheaper choice depends on the model and workload.

## Running long-horizon agents?

If your agents run past 200K tokens, compare both against Subconscious: [Subconscious vs Cerebras](https://www.subconscious.dev/compare/subconscious-vs-cerebras.md), [Subconscious vs Morph](https://www.subconscious.dev/compare/subconscious-vs-morph.md).

Full profiles: [Cerebras](https://www.subconscious.dev/providers/cerebras.md), [Morph](https://www.subconscious.dev/providers/morph.md).