# 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 $0.015/h; Small 1 vCPU/4 GiB $0.02/h; Standard 2 vCPU/4 GiB $0.03/h; Memory 2 vCPU/8 GiB $0.04/h; Large 4 vCPU/16 GiB $0.08/h; XL 8 vCPU/32 GiB $0.16/h

## Features

Yes: snapshots, pause/resume, persistent disk, whole disk survives a stop, ≥24 h sessions, custom image (Docker or snapshot), start from your own snapshot, full VM (own kernel), browser, desktop GUI, computer-use API, browser + desktop control, SSH, HTTPS preview URLs, open internet, self-hosting, open source, Python, Node.js, automatic snapshots, gVisor or VM (no shared kernel), inbound access rules, firewall inside (nftables), FUSE mounts, kernel features (eBPF, mounts, cgroups)

No: memory snapshots, fork/clone, volumes, idle auto-stop, your own Docker/OCI image, nested virtualization, anti-bot stealth, CAPTCHA solving, residential IPs, preinstalled agents, public IPv4, egress allowlist, static egress IP, BYOC, SOC 2, HIPAA, SSO, GPU, arm64, Windows, macOS, HTTP method/path egress rules, wake on request, live resize, live fork (no pause), memory fork, EU data residency, MCP server, usage per sandbox (API), 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

## Company

- Ownership: independent
- Stage: unknown [source](https://celesto.ai/)
- Accelerators: none found
- Total raised: unknown
- Investors: Grayscale VC
- Revenue: unknown

Small, early-stage team: GitHub org CelestoAI (created 2024/2025, 10 public repos) is led publicly by developer Aniket Maurya (HN posts as theaniketmaurya for SmolVM, the open-source local sandbox underlying the product). Homepage states 'Backed by Grayscale VC' but discloses no round type, amount, or date. No YC listing exists for the name 'celesto' (page returns 404). Company is pre-revenue/early stage per its own Terms of Service ('Research Mode... do not use for regulated or high-risk workloads').

## Caveats

- Live pricing page and docs conflict: pricing sells Micro/Small/Standard/Memory/Large/XL with root disks 20-100 GB, while the docs computers/resources pages still list Nano 512 MB, Small 1 GB, Standard 4 GB, Large 4 vCPU 12 GB, Builder/Growth plans and "disk_size_mb ... Range: 512-20480 MB" (SDK docstring says 512-51200). Card follows the pricing page; old Builder/Growth subscriptions are not assumed purchasable.
- Rates on the card apply to newly created sandboxes only: "These rates apply to newly created sandboxes. Existing sandboxes retain their original rates, including after stop and restart." Sandboxes created before the cut keep the older, roughly 2x rates.
- 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 and fork capability does not prove identical hosted semantics. Homepage forking claim is not backed by the hosted SDK or docs.
- Desktop/computer-use rests on the hosted SDK's display (RFB/VNC) and browser (CDP) connection calls; hosted docs pages do not describe them yet.
- 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 for 30 days, one retained Micro sandbox, no card; topping up unlocks other sizes and unused trial credit lasts until its original deadline. Taxes/card-issuer conversion extra. Trial credit is not applied to paid-mode estimates.

## 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