Terminal-Bench 4.0 is the official leaderboard of the terminal-work benchmark. Every published row measures a model through a vendor's own agent such as Claude Code, Codex or Grok Build, so ModelCap shows each result with its harness named and does not score the Index on it. This page lists every model ModelCap tracks with a published Terminal-Bench 4.0 result, its best evaluated configuration, the source's own rank, and the model's ModelCap Index position, API price and context window.
Snapshot as of 29 September 2026
Claude Opus 5.5 from Anthropic leads the Terminal-Bench 4.0 leaderboard among the 23 tracked models with 64.9% (Claude Code · Max configuration), per the source snapshot published 29 September 2026.
Terminal-Bench 4.0 ranks models by task accuracy through the vendor's own agent. ModelCap ingests the board as published, matches each entry to a catalogue model with a reviewed identity, and shows the source's score, interval and rank unchanged. Terminal-Bench 4.0 is displayed as a public reference board and does not contribute to the ModelCap Index. Its published measurements and tested configurations remain visible here. The methodology page lists the sources admitted to the Index. Read the methodology and identity rules.
Terminal-Bench 4.0 leaderboard: common questions
What is the Terminal-Bench 4.0 benchmark?
Terminal-Bench 4.0 is the official leaderboard of the terminal-work benchmark. Every published row measures a model through a vendor's own agent such as Claude Code, Codex or Grok Build, so ModelCap shows each result with its harness named and does not score the Index on it. It is published by Terminal-Bench (Laude Institute).
Which AI model leads Terminal-Bench 4.0 right now?
Claude Opus 5.5 (Anthropic) holds the top Terminal-Bench 4.0 score among the models ModelCap tracks, at 64.9% as of the source snapshot published 29 September 2026.
How many models are ranked on the Terminal-Bench 4.0 leaderboard here?
23 tracked models have a published Terminal-Bench 4.0 result on ModelCap; the source board itself lists 35 entries. Each row shows the model's best evaluated configuration.
What is the best open-weight model on Terminal-Bench 4.0?
GLM 5.3 Flash from Z.ai is the highest-scoring model with openly downloadable weights on this board, at 35.8%.
Which model offers the best value on Terminal-Bench 4.0?
Among the ten highest-scoring priced models, GLM 5.3 has the lowest listed output price at $1.80 per 1M tokens while scoring 41.8%.
How is Terminal-Bench 4.0 scored?
The board ranks models by task accuracy through the vendor's own agent; higher scores are better. ModelCap shows the source's own score, interval and rank and never re-runs the evaluation.
Does Terminal-Bench 4.0 decide the ModelCap Index rank?
Terminal-Bench 4.0 is displayed as a public reference board and does not contribute to the ModelCap Index. Its published measurements and tested configurations remain visible here. The methodology page lists the sources admitted to the Index.
How recent are the Terminal-Bench 4.0 results?
The newest Terminal-Bench 4.0 publication ModelCap holds is dated 29 September 2026. This page uses the published snapshot; source collection, publication and page updates happen separately.