Composer 2
Released
2026-03-19
Last refreshed
2026-06-29
Status
Researched 136d ago
ProprietaryCommercial use: conditionalCodingRAGAgentsLong contextJSON / Tool use
Cursor (Anysphere) releases · 2 in the last 12 monthsChangelog →
Specifications
- Family
- Composer
- Released
- 2026-03-19
- Context
- 200k
- Specialization
- code
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
Created by
Pricing
Output / 1M
$2.50
Input / 1M
$0.500
Cheapest of 1 route · Cursor
About
Cursor's coding model released March 19, 2026. Fine-tuned from Moonshot AI's Kimi K2.5 checkpoint via continued pretraining and large-scale RL on long-horizon coding tasks. Scores 61.3 on CursorBench, 61.7 on Terminal-Bench 2.0 (vs. Claude Opus 4.6's 58.0), and 73.7 on SWE-bench Multilingual. Technical report: arxiv.org/abs/2603.24477. Available on all Cursor plans. Standard: $0.50/M input, $2.50/M output; Fast: $1.50/M input, $7.50/M output.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| Cursor | $0.500 | $2.50 |
Capabilities
JSON / Tool useCode Execution
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(3)
Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| SWE-rebench | 58.0 | pass@1 (best of 5 runs)Observed 2026-05-28 | — | Source |
| Terminal-Bench 2.0 | 61.7 | Official Harbor evaluation framework (score)Observed 2026-06-07 | — | Source |
| CursorBench | 52.2 | CursorBench 3.1Observed 2026-06-30 | Configuration: Composer 2 (single reported configuration) Harness: CursorBench 3.1 Evaluator: Cursor Confidence: confirmed Notes: Cursor published one CursorBench 3.1 configuration for this model; no cross-effort selection was needed. | Source |
Migration checks
No linked migration route is available for this model yet.
Compare Composer 2 with other models
Created by
Pricing
Output / 1M
$2.50
Input / 1M
$0.500
Cheapest of 1 route · Cursor