Phengos

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Download & Buy ​

Community — free ​

The Community edition is distributed through GitHub Releases. Download the build for your platform and you're ready to generate — bring your own key for any supported provider, or run open models fully offline through Ollama with no key and no per-token cost.

Available for Linux and Windows. Additional platforms can be added where there is demand — contact sales@hyperoche.com to discuss requirements. See Getting Started for installation and first-run steps.

Use Community for real work — today

Community is not a time-limited trial and its license permits commercial use. Bring your own provider key, or run local models through Ollama fully offline with no key and no per-token cost. Generations are unlimited, keys remain in the OS credential store, and all work stays on the local machine.

Linux installation ​

Minimum glibc version: 2.35

Each release ships an RPM, a DEB, and a tarball. Download the package for your distribution alongside its .asc signature file, then install with your package manager.

Packages are signed with the Hyperoche signing key, ID d3843cee. Import it before verifying — an installed package imports it for you, but that is too late for a check you want to run beforehand.

sh
# Import the signing key into RPM's keyring first. Without this, rpm and dnf
# report "NOKEY": the package is signed, but they have no key to check it with.
sudo rpm --import https://hyperoche.com/hyperoche-public-key.asc

# Verify the RPM header signature
rpm --checksig phengos-1.3.1-community-x86_64.rpm

# Install (dnf handles upgrade if a previous version is already present)
sudo dnf install phengos-1.3.1-community-x86_64.rpm

# Optional: verify the detached signature as well. GnuPG keeps its own keyring,
# separate from RPM's, so this needs its own import.
gpg --import https://hyperoche.com/hyperoche-public-key.asc
gpg --verify phengos-1.3.1-community-x86_64.rpm.asc \
            phengos-1.3.1-community-x86_64.rpm
sh
# Install (apt handles upgrade if a previous version is already present)
sudo apt install ./phengos-1.3.1-community-x86_64.deb

# Optional: verify the detached signature before installing
gpg --import https://hyperoche.com/hyperoche-public-key.asc
gpg --verify phengos-1.3.1-community-x86_64.deb.asc \
            phengos-1.3.1-community-x86_64.deb
sh
tar -xzf phengos-1.3.1-community-x86_64.tar.gz
cd phengos-1.3.1-community-x86_64
./phengos

# Optional: verify before extracting
gpg --import https://hyperoche.com/hyperoche-public-key.asc
gpg --verify phengos-1.3.1-community-x86_64.tar.gz.asc \
            phengos-1.3.1-community-x86_64.tar.gz
Verify checksums (all platforms)

Every release includes a signed SHA256SUMS file covering all artifacts.

sh
# Import the key once
gpg --import https://hyperoche.com/hyperoche-public-key.asc

# Verify the checksum file itself was signed by Hyperoche
gpg --verify SHA256SUMS.asc SHA256SUMS

# Then verify your downloaded file matches
sha256sum -c SHA256SUMS --ignore-missing

Signing key: Hyperoche Release Signing Key <security@hyperoche.com>
Fingerprint: E90D DC63 3533 E0B3 749A 13D8 F907 04C2 641E F271
Signing subkey: CB8A 83D6 A8A0 287C 1D80 D87F E5E5 E3DF D384 3CEE (expires 2028-06-09)
Public key: hyperoche.com/hyperoche-public-key.asc

Pro — $49 (introductory; regular $79) ​

Pro is a one-time, perpetual license — you own this version forever, with no subscription. A purchase on any platform entitles you to Phengos on every platform it supports.

Buy Pro on itch.io → ​

itch.io is the seller of record for this purchase and handles payment, invoicing and applicable taxes. Direct purchasing through our own Merchant of Record is being set up and will be offered alongside it.

After purchase you'll receive a license serial to activate Pro in the app. See License activation for how activation works.

Founding-user discount

Contact sales@hyperoche.com to request a founding-user discount code. No sign-up required.

Community is free, fully capable, and licensed for commercial use. Move to Pro when you require persistent history, integrity verification across cloud and offline runs, unlimited files per run, or multi-turn chat. Every edition reaches every provider.

Before you buy: an itch.io purchase is covered by itch.io's own refund policy. Purchases made through our Merchant of Record, once available, are covered by our Refund Policy (30-day money-back). By purchasing you agree to the Terms of Sale. EU consumers: see the Terms for how the 14-day withdrawal right applies to instantly-delivered digital content.

$49 is the introductory price; the regular price is $79.

Enterprise ​

Enterprise uses a custom license. Contact us to discuss terms.

Which edition is right for me? ​

  • Trying Phengos, or working through Ollama and the online providers without needing saved history → Community (free).
  • Persistent history, unlimited files per run, and integrity verification across cloud and offline runs → Pro.
  • Need editable provider endpoints, dedicated support, or custom terms → Enterprise.

Compare all editions