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Compare/Sortie vs Tessera

SortievsTessera

Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.

Sortie
Sortie AI · Agent harness
OSS
Panel
6.3
1 spec wins
Reliability
6.2
Usefulness
6.7
Cost
7.2
Longevity
5.3

“It assumes your agent already works when you run it by hand, which is the most optimistic sentence in the documentation.”

Tessera
Horang Labs · Agent harness
OSS
Panel
6.3
1 spec wins
Reliability
5.8
Usefulness
6.5
Cost
6.8
Longevity
5.8

“A paired phone continues the same sessions, so the agent can now wait for your approval while you are asleep.”

Spec by spec

SpecSortieTessera
Architecture
CategoryAgent harnessAgent harness
Runslocallocal
Platformsmacos, linuxmacos, linux, windows, web
Context windownot documentednot documented
Protocols
MCP clientNoNo
MCP serverNoNo
Capabilities
Runs terminal commandsYesYes
Multi-file editsYesCode changes are made by the coding agent Sortie schedules; Sortie supplies workspaces, retries and state. YesFiles are changed by the Claude Code, Codex or OpenCode session Tessera runs in each worktree; Tessera adds its own file and diff editor on top.
Git operationsYesYes
Browser controlNoNo
Sandboxed executionNoNo
Multi-agent orchestrationYesYesA lead agent can create worktrees and launch, read and prompt parallel worker sessions through the /tessera-cli command.
Headless / CI modeYesNo
Models
BackboneClaude Code, agent-agnosticClaude Code, Codex, OpenCode
Bring your own modelYesYes
Local modelsNoNo
Cost
Pricing modelbyokbyok
Starts at$0/mo$0/mo
Free tierYesYes
Bring your own keyYesYes
Openness
Open sourceYesYes
LicenseApache-2.0AGPL-3.0
GitHub stars194311

Which one would each critic pick

CriticSortieTesseraPick
El Juez——not enough reviews
El Amigo6.56.8Tessera — Pick Tessera if you want agent work to move through visible stages; pick a single session if a board with five columns would only be a board you stopped updating.
El Crítico5.35.3no preference
El Profesor6.86.5Sortie — The entire configuration is one declarative file naming the tracker, the filter, the state machine, the agent kind and the concurrency limit, which makes a deployment a readable object.
La Inversora6.05.8Sortie — A hundred and thirty-nine stars, a named company, a permissive licence and no commercial surface at all, which leaves the business question entirely unanswered.
La Jefa6.35.8Sortie — Free across sixty engineers, it runs unattended, and it tracks cost per run, which makes it one of the few things on this board I could actually put in a budget review.
El Hacker7.37.5Tessera — Strong copyleft, which is the licence I want on something I depend on, and each backend takes a custom model identifier so I decide what is actually behind each session.

Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.

Want a third column? The compare tool handles any two agents. Three-way comparisons are on the roadmap once the spec rows are all verified.