Extended implementation work
Use Composer 2.5 when an agent needs to inspect a repository, edit multiple files, run commands, and iterate through a longer task.
Independent tool overview
Composer 2.5 at a glance
Composer 2.5 is Cursor's current fast, cost-efficient coding-agent model for sustained software tasks. It remains available across Cursor, but it is positioned around speed and value rather than as the company's flagship intelligence model.
Visit the official Composer 2.5 site ↗
- Best for
- Long-running coding tasks inside Cursor
- Context window
- 200,000 tokens
- Model base
- Moonshot AI Kimi K2.5
- Availability
- Cursor desktop, web, CLI, mobile, and SDK
- Standard price
- $0.50 input / $2.50 output per 1M tokens
- Fast price
- $3 input / $15 output per 1M tokens
Overview
What Composer 2.5 is
Composer 2.5 is Cursor's proprietary coding-agent model for longer software tasks. Cursor says it improves sustained work, complex instruction following, communication, and effort calibration over Composer 2. The model is built on Moonshot AI's Kimi K2.5 and further trained by Cursor with targeted textual feedback and substantially more synthetic tasks.
The model runs inside Cursor rather than as a standalone general-purpose API. In Cursor it can search a repository, read files and images, edit code, run shell commands, browse the web, control a browser, generate images, ask follow-up questions, and retrieve project rules. That integration is the main reason to choose it over calling the underlying base model directly.
Composer 2.5 remains a current option in Cursor's model catalog as of this review. Cursor positions Composer as the fast, cost-efficient choice for long-running agents, while also offering other frontier models. Buyers should therefore evaluate it for the speed, price, and Cursor workflow—not assume it is automatically the strongest model for every coding problem.
Use cases
Who Composer 2.5 is best for
The strongest fit depends on the job you need the product to complete, not the size of its feature list.
Cost-conscious agent usage
The Standard mode is priced well below the Fast variant and is useful when completion quality matters more than lowest latency.
Cursor-centered teams
It fits teams already relying on Cursor's repository context, rules, browser, terminal, and agent interfaces.
Capabilities
Core Composer 2.5 features
Long-horizon agent behavior
Cursor trained Composer 2.5 to stay on task through longer coding sessions, follow complex instructions, and communicate progress more reliably.
Full Cursor tool access
The model can search, read, edit, run shell commands, browse, use screenshots, generate images, ask questions, and fetch Cursor rules.
Standard and Fast modes
Standard prioritizes cost efficiency, while Fast uses the same model at a higher token rate for lower latency.
200K-token context
The model supports a 200,000-token context window for prompts, code, tool results, and conversation history.
Multiple Cursor surfaces
Composer is available through Cursor's desktop editor, web and mobile agents, command-line interface, and agent SDK.
Process
How the Composer 2.5 workflow works
Step 1
Choose a bounded task
Give Composer a clear outcome, relevant constraints, and any repository rules or tests it must preserve.
Step 2
Select Standard or Fast
Use Standard for economical long runs; choose Fast only when the latency benefit justifies its much higher token price.
Step 3
Let the agent inspect and iterate
Composer can search the codebase, edit files, execute commands, and use browser tools while working toward the requested result.
Step 4
Review the evidence
Inspect the diff, test output, terminal actions, and any security-sensitive changes before merging or deploying.
Cost
Composer 2.5 pricing and free plan
Composer 2.5 usage draws from Cursor's model allowance or on-demand usage. Standard and Fast have separate token rates, and Cursor subscriptions provide access to a shared model pool rather than a dedicated Composer-only quota.
Composer 2.5 Standard
$0.50 input / $0.20 cache read / $2.50 output per 1M tokens
The cost-efficient mode for routine and long-running agent work.
- 200K-token context window
- Uses the Cursor Models pool
- No separate standalone Composer subscription
Composer 2.5 Fast
$3 input / $0.50 cache read / $15 output per 1M tokens
The lower-latency version of Composer 2.5 and Cursor's default Composer mode.
- Six times the Standard input and output rate
- Same 200K context window
- Uses the Cursor Models pool
Cursor Pro
$20 per month
The entry paid Cursor plan with access to the shared model pools.
- Monthly included usage resets and does not roll over
- On-demand usage can be enabled after the included limit
- Composer usage depends on tokens consumed
Cursor Pro Plus
$60 per month
A higher-usage individual plan.
- Access to Cursor's model pools
- Higher included usage than Pro
- Monthly usage resets
Cursor Ultra
$200 per month
Cursor's high-usage individual plan.
- Access to Cursor's model pools
- Highest individual-plan included usage
- Monthly usage resets
Pricing checked . Check current pricing at the source ↗
Assessment
Composer 2.5 strengths and limitations
Where it stands out
- Designed specifically for sustained agentic software work inside Cursor.
- Standard mode has a low published token price for a coding agent.
- Deep access to Cursor's repository, terminal, browser, rules, and editing tools.
- Fast mode is available when response latency matters more than cost.
- Privacy Mode is available to individual and team users and prevents training on customer code.
What to consider
- Composer 2.5 is tied to Cursor and is not offered as a standalone general-purpose model API.
- Fast input and output are priced at six times the Standard rates.
- Cursor positions Composer around speed and cost efficiency, not as the strongest model for every coding task.
- A 200K context window can still require context pruning on very large repositories or long sessions.
- Agent tools can edit files and execute shell commands, so users must review changes and protect credentials.
- With Privacy Mode disabled, Cursor may store codebase data, prompts, editor actions, and snippets to improve or train its AI features.
Compare
Composer 2.5 alternatives
The right alternative depends on the specific output, workflow, controls and budget your project requires.
Agents
Kimi K2.5
Choose the open-weight base model when you want broader deployment options outside Cursor.
Explore Kimi K2.5 →Consumer
Claude Sonnet 5
Consider Anthropic's current cost-effective coding model when model intelligence and a broader provider ecosystem matter more than Composer's Cursor-specific tuning.
Explore Claude Sonnet 5 →Coding
Codex
Choose OpenAI Codex for a coding-agent workflow that spans the Codex app, CLI, IDE integrations, cloud tasks, and SDK.
Explore Codex →Questions
Composer 2.5 FAQs
Is Composer 2.5 still available in Cursor?
Yes. Cursor's current model documentation still lists Composer 2.5 with Standard and Fast modes. No official Composer successor was listed when this review was checked.
How much does Composer 2.5 cost?
Standard costs $0.50 per million input tokens, $0.20 per million cache-read tokens, and $2.50 per million output tokens. Fast costs $3, $0.50, and $15 respectively. Usage can draw from an included Cursor plan allowance or on-demand billing.
What is Composer 2.5 based on?
Cursor says Composer 2.5 is built on Moonshot AI's Kimi K2.5 and then post-trained with Cursor's software-engineering tasks and feedback.
What is Composer 2.5's context window?
Cursor lists a 200,000-token context window for Composer 2.5.
Is Composer 2.5 Cursor's best model?
Not necessarily. Cursor describes Composer as a fast, cost-efficient model for long-running agents and also offers other frontier models. The best choice depends on task difficulty, speed, and budget.
Does Cursor train on code sent to Composer 2.5?
With Privacy Mode enabled, Cursor says customer code is not used for training by Cursor or model providers. With Privacy Mode disabled, Cursor may store and use code data and prompts to improve and train its AI features.
Bottom line
Our Composer 2.5 verdict
Composer 2.5 is a strong default for developers who want an economical, deeply integrated Cursor agent that can keep working through multi-step implementation tasks. Standard mode is the clearest value; Fast should be reserved for work where lower latency is worth a sixfold token-rate increase. Teams handling sensitive code should enforce Privacy Mode and still review every file and command the agent touches.
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