# Celesto Cloud

Official pricing: https://celesto.ai/pricing  
Category: agent-sandbox · Isolation: vm

## Pricing regimes (raw)

- **Current PAYG fixed sizes(shared CPU)** (sizes): Micro 1 vCPU/2 GiB $0.03/h; Small 1 vCPU/4 GiB $0.04/h; Standard 2 vCPU/4 GiB $0.06/h; Memory 2 vCPU/8 GiB $0.08/h; Large 4 vCPU/16 GiB $0.16/h; XL 8 vCPU/32 GiB $0.32/h

## Features

Yes: snapshots, fork/clone, pause/resume, persistent disk, ≥24 h sessions, custom image (Docker or snapshot), start from your own snapshot, full VM (own kernel), browser, SSH, HTTPS preview URLs, egress allowlist, open internet, self-hosting, open source, Python, Node.js, live fork (no pause), automatic snapshots, gVisor or VM (no shared kernel), inbound access rules, firewall inside (nftables)

No: memory snapshots, volumes, idle auto-stop, your own Docker/OCI image, nested virtualization, desktop GUI, computer-use API, browser + desktop control, anti-bot stealth, CAPTCHA solving, residential IPs, preinstalled agents, public IPv4, static egress IP, BYOC, SOC 2, HIPAA, SSO, GPU, arm64, Windows, macOS, HTTP method/path egress rules, wake on request, live resize, memory fork, EU data residency, MCP server, snapshots on demand, agent harness API, hosted agent API (their own agent), secret proxy, secret proxy for any API, extra volumes, shared volumes

Unknown: everything else. Evidence (source + quote) per feature: https://battleships.dev/data/providers/celesto.json → feature_evidence

## Caveats

- Live pricing page and homepage/docs conflict: current Large 4 vCPU 16 GB versus older docs Large 4 vCPU 12 GB; old Builder/Growth subscriptions are not assumed purchasable alongside newPAYG.
- Published paid offer caps running computers at 10;50 concurrency unsupported without separately confirmed terms.
- All CPU sizes marked shared, not dedicated.
- Cloud stop/start preserves files; local SmolVM full-memory snapshot capability does not prove identical hosted semantics.
- Root disk retained free for 30 days stopped; charge/availability after 30 days and egress price unknown.
- Billing increment and per start minimum not published on pricing page.
- Trial 5 USD valid 30 days; forfeited when switching to paid; taxes/currency conversion extra.
- Do not apply trial credit to paid mode: switching to paid forfeits unused trial balance. Raw provider retains exact trial offer.

## How this provider charges


As of 2026-09-28. Current dedicated pricing page publishes live USD usage rates. Homepage and cloud docs still describe older Free/Nano/Builder/Growth subscription sizes; conflict is preserved instead of combining them.

## Regimes

| Regime | When it applies | How billed / numbers | Source |
|---|---|---|---|
| Current paid sizes | Native product usage | Micro 1 CPU 2 GB 20 GBdisk$0.03/h; Small 1/4/25$0.04; Standard 2/4/30$0.06; Memory 2/8/40$0.08; Large 4/16/60$0.16; XL 8/32/100$0.32. | [Primary pricing](https://celesto.ai/pricing) |
| Stopped | Native product usage | No runtime fee; included root disk retained free 30 days. | [Primary pricing](https://celesto.ai/pricing) |
| Conflicting older homepage catalogue | Native product usage | Free 30 Nano-hours; Nano$5/750 Nano-hours; Builder$29/300 standard-hours+$0.10 overage; Growth$199/2,500 standard-hours+$0.08 overage. Availability and mappings conflict with dedicated pricing; not auto-ranked. | [Primary pricing](https://celesto.ai/pricing) |
| Usage-based paid | Account plan | $0/month; No platform fee or minimum spend; up to 10 running computers, subject to capacity. | [Primary pricing](https://celesto.ai/pricing) |
| Trial | Account plan | $0/month; One retained sandbox,5 USD runtime credit for 30 days; unused credit ends on upgrade. | [Primary pricing](https://celesto.ai/pricing) |

## Gotchas

- Live pricing page and homepage/docs conflict: current Large 4 vCPU 16 GB versus older docs Large 4 vCPU 12 GB; old Builder/Growth subscriptions are not assumed purchasable alongside newPAYG.
- Published paid offer caps running computers at 10;50 concurrency unsupported without separately confirmed terms.
- All CPU sizes marked shared, not dedicated.
- Cloud stop/start preserves files; local SmolVM full-memory snapshot capability does not prove identical hosted semantics.
- Root disk retained free for 30 days stopped; charge/availability after 30 days and egress price unknown.
- Billing increment and per start minimum not published on pricing page.
- Trial 5 USD valid 30 days; forfeited when switching to paid; taxes/currency conversion extra.

## Required worked example

4 vCPU / 8 GiB, 50 concurrent × 8 h/day × 22 days = **8,800 instance-hours**, 30% CPU, 50 GiB retained snapshots and 100 GiB egress.

**No admissible 50-concurrent quote:** paid limit 10. Ignoring that constraint solely to verify arithmetic,8,800 Large 4 CPU 16 GBhours ×$0.16 =**$1,408**. It is not a 4/8 SKU and not a confirmed 50-session deployment. CPU 30% does not reduce wall time price. Retained root disk 30 days free, but 50 GiB memory snapshots/egress unknown.

## Feature evidence

- https://celesto.ai/
- https://docs.celesto.ai/llms-full.txt
- https://docs.celesto.ai/cloud/computers
- https://docs.celesto.ai/cloud/features/resources
- https://github.com/CelestoAI/celesto