# Fireworks AI vs RunInfra

> RunInfra offers cheap coding plans and an agent that builds deployments for mid-size models. Fireworks offers frontier-class open models and managed training.

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

## How they compare

Model size is the first difference. RunInfra's hosted library is tiny and centered on mid-size models like Nemotron 3.5 Lightning 30B and Qwen 3.8 27B, which its own profile places far from frontier quality. Fireworks serves 400+ models, including large ones like DeepSeek V4 Pro at full 1M context and Kimi K3. RunInfra's hook is automation: describe an endpoint in plain English, and its agent picks a model, benchmarks it on GPUs from L4 to B200, searches quantized variants and ships an endpoint that scales to zero with cold starts under two seconds.

For individual developers, RunInfra's coding plans from $10 a month plug into Claude Code, Codex, OpenCode, Cline and Aider. For small teams, the deployment agent and voice pipelines chaining Whisper, an LLM and TTS remove ML ops work. Fireworks answers with managed SFT, DPO and RL, fine-tunes served at base price, SOC 2, HIPAA and ISO, and a much longer track record. RunInfra is a young company with little independent benchmarking. Frontier-class open models in production belong on Fireworks.

## What each one does

### Fireworks AI

Fireworks AI was founded in 2022 by former Meta PyTorch engineers led by CEO Lin Qiao, and it sells speed on open models. Its custom serving stack has posted 167 to 174 tokens per second on DeepSeek V4 Pro in third-party measurements, several times what most GPU peers hit on the same model. The catalog holds 400+ models across text, vision, audio and embeddings, served through an OpenAI-compatible API. In July 2026 it raised a $1.505B Series D at a $17.5B valuation, with a reported $1B+ run rate and 40T+ tokens a day.

### RunInfra

RunInfra pitches open models built for agents, with two ways in. Its hosted Model APIs serve a small curated library, including Nemotron 3.5 Lightning 30B, Qwen 3.8 27B and Ornith 1.5 35B, behind one key that works with both the OpenAI and Anthropic SDKs. Cached context bills at a discount. Coding plans start at $10 a month with limits that reset every five hours and every week, and they plug into Claude Code, Codex, OpenCode, Cline, Aider and dozens of other agent CLIs.

## Which is best, and when

### Choose Fireworks AI for

- Large open models like DeepSeek V4 Pro and Kimi K3
- Managed RL and SFT with tuned models at base price
- Enterprise buyers needing certifications and a track record

### Choose RunInfra for

- Cheap flat-rate open models inside Claude Code or Codex
- Small teams deploying a voice pipeline without ML ops staff
- Auto-quantized endpoints tuned to a latency target

## At a glance

| Attribute | Fireworks AI | RunInfra |
|---|---|---|
| Model access | Open weights | Open weights |
| Flagship models | DeepSeek V4 Pro, Kimi K3 | Nemotron 3.5 Lightning 30B, Qwen 3.8 27B |
| Speed | 167–174 tok/s on DeepSeek V4 Pro | Cold starts under 2s |
| Price | Fine-tunes served at base price | Coding plans from $10 a month |
| Customization | SFT, DPO, RFT; Training API | Uploads up to 50 GB; auto-quantization |
| Deployment | Serverless, dedicated GPUs | Model APIs, agent-built endpoints |
| Long context | Full 1M on DeepSeek V4 Pro | Varies by model |

## FAQ

### What is the difference between Fireworks AI and RunInfra?

RunInfra offers cheap coding plans and an agent that builds deployments for mid-size models. Fireworks offers frontier-class open models and managed training.

### When should I choose Fireworks AI over RunInfra?

Large open models like DeepSeek V4 Pro and Kimi K3; Managed RL and SFT with tuned models at base price; Enterprise buyers needing certifications and a track record.

### When should I choose RunInfra over Fireworks AI?

Cheap flat-rate open models inside Claude Code or Codex; Small teams deploying a voice pipeline without ML ops staff; Auto-quantized endpoints tuned to a latency target.

### Is Fireworks AI or RunInfra cheaper?

Fireworks AI: Fine-tunes served at base price. RunInfra: Coding plans from $10 a month. The cheaper choice depends on the model and workload.

### Which has more context, Fireworks AI or RunInfra?

Fireworks AI: Full 1M on DeepSeek V4 Pro. RunInfra: Varies by model.

## Running long-horizon agents?

If your agents run past 200K tokens, compare both against Subconscious: [Subconscious vs Fireworks AI](https://www.subconscious.dev/compare/subconscious-vs-fireworks.md), [Subconscious vs RunInfra](https://www.subconscious.dev/compare/subconscious-vs-runinfra.md).

Full profiles: [Fireworks AI](https://www.subconscious.dev/providers/fireworks.md), [RunInfra](https://www.subconscious.dev/providers/runinfra.md).