llmreference

Composer 2.5

composer-2-5

Researched 1d ago

Last refreshed 2026-05-19. Next refresh: weekly.

ProprietaryCodingAgentsJSON / Tool use

Composer 2.5 is worth evaluating for coding, agents, and json / tool use when its provider route and context window match the workload.

Decision context: Coding task fit, 1 tracked provider route, and research from 2026-05-19.

Use it for

  • Teams evaluating coding, agents, and json / tool use
  • Buyers comparing 1 tracked provider route

Do not use it for

  • Vision or document-understanding workloads

Cheapest output

$2.50

Cursor per 1M tokens

Provider routes

1

Tracked API hosts

Quality / dollar

Unknown

No task benchmark coverage yet

Freshness

2026-05-19

Researched 1d ago

fresh

Top use-case fit

Coding

Included by capability and metadata signals in the decision map.

Agents

Included by capability and metadata signals in the decision map.

JSON / Tool use

Included by capability and metadata signals in the decision map.

Provider price ladder

ProviderInput / 1MOutput / 1MRoute
Cursor$0.500$2.50
Serverless

Benchmark peer barsfor Coding

No task-mapped benchmark peers are available for this model yet.

Migration checks

No linked migration route is available for this model yet.

About

Cursor's agentic coding model released May 18, 2026. Built on Moonshot AI's Kimi K2.5 open-source checkpoint with targeted RL using textual feedback and 25× more synthetic training tasks than Composer 2. Designed for long-horizon software engineering tasks: multi-file edits, terminal command execution, codebase-wide semantic search, and autonomous task planning. Available on all Cursor plans; accessed through the Cursor IDE (not a standalone API). Standard pricing: $0.50/M input, $2.50/M output; Fast (default): $3.00/M input, $15.00/M output.

Composer 2.5 input tokens at $0.5/1M, output at $2.5/1M.

Capabilities

Function CallingTool UseCode Execution

Rankings

Specifications

FamilyComposer
Released2026-05-18
Specializationcode

Created by

AI-driven multi-file code generation

Buffalo, New York, United States
Founded 2022
Website

Providers(1)