vs
0:0
overall capability wins (2 ties across 2 scored). Composer 2.5 leads overall.
- Speed0:2
Verdict
Composer 2 and Composer 2.5 are closely matched on the overlapping metrics we have.
Cost for 1M in + 250K out
Illustrative chat workload at primary-provider list prices.
- Composer 2
- $1.13
- Composer 2.5
- $1.13
Price per 1M tokens
Full comparison
Organization
Cursor
Cursor
Family
Composer
Composer
License
Proprietary
Proprietary
Open weights
No
No
Release
Mar 19, 2026
May 18, 2026
Knowledge cutoff
-
-
API / provider
Cursor
Cursor
Modalities
text → text
text → text
Specs
Context window
200K
200K
Max output
64K
64K
Parameters
—
—
Pricing
Input $/1M
$0.50
$0.50
Output $/1M
$2.50
$2.50
Blended $/1M (3∶1)
$1
$1
Speed
tok/s
85
90
TTFT (s)
0.4
0.35
Reasoning
MMLU-Pro
—
—
GPQA Diamond
—
—
Humanity's Last Exam
—
—
AIME 2025
—
—
MATH-500
—
—
Humanity's Last Exam (with tools)
—
—
AA-Omniscience Accuracy
—
—
AA-LCR v1.1
—
—
CritPt
—
—
MMMU-Pro
—
—
IFBench
—
—
Chartography
—
—
Chartography (With Tools)
—
—
Coding
SWE-bench Verified
—
—
SWE-bench Pro
—
—
SWE-bench Multilingual
—
79.8
LiveCodeBench
—
—
Terminal-Bench 2.1
—
—
Aider Polyglot
—
—
Terminal-Bench 3
—
—
BigCodeBench
—
—
SciCode
—
—
CursorBench
—
56.1
SWE-Rebench
—
—
NL2Repo-Bench
—
—
DeepSWE
—
—
WebDev Arena
—
—
Terminal-Bench 4.0
—
—
CursorBench 4.0
—
—
FrontierCode v1.1 (Main)
—
—
Arena
LMArena Elo
—
—
| Metric | Composer 2 | Composer 2.5 | Delta |
|---|---|---|---|
| Identity | |||
| Organization | Cursor | Cursor | — |
| Family | Composer | Composer | — |
| License | Proprietary | Proprietary | — |
| Open weights | No | No | — |
| Release | Mar 19, 2026 | May 18, 2026 | — |
| Knowledge cutoff | - | - | — |
| API / provider | Cursor | Cursor | — |
| Modalities | text → text | text → text | — |
| Specs | |||
| Context window | 200K | 200K | tie |
| Max output | 64K | 64K | tie |
| Parameters | — | — | — |
| Pricing | |||
| Input $/1M | $0.50 | $0.50 | tie |
| Output $/1M | $2.50 | $2.50 | tie |
| Blended $/1M (3∶1) | $1 | $1 | tie |
| Speed | |||
| tok/s | 85 | 90 | B +5.00 |
| TTFT (s) | 0.4 | 0.35 | B +0.05 |
| Reasoning | |||
| MMLU-Pro | — | — | — |
| GPQA Diamond | — | — | — |
| Humanity's Last Exam | — | — | — |
| AIME 2025 | — | — | — |
| MATH-500 | — | — | — |
| Humanity's Last Exam (with tools) | — | — | — |
| AA-Omniscience Accuracy | — | — | — |
| AA-LCR v1.1 | — | — | — |
| CritPt | — | — | — |
| MMMU-Pro | — | — | — |
| IFBench | — | — | — |
| Chartography | — | — | — |
| Chartography (With Tools) | — | — | — |
| Coding | |||
| SWE-bench Verified | — | — | — |
| SWE-bench Pro | — | — | — |
| SWE-bench Multilingual | — | 79.8 | — |
| LiveCodeBench | — | — | — |
| Terminal-Bench 2.1 | — | — | — |
| Aider Polyglot | — | — | — |
| Terminal-Bench 3 | — | — | — |
| BigCodeBench | — | — | — |
| SciCode | — | — | — |
| CursorBench | — | 56.1 | — |
| SWE-Rebench | — | — | — |
| NL2Repo-Bench | — | — | — |
| DeepSWE | — | — | — |
| WebDev Arena | — | — | — |
| Terminal-Bench 4.0 | — | — | — |
| CursorBench 4.0 | — | — | — |
| FrontierCode v1.1 (Main) | — | — | — |
| Arena | |||
| LMArena Elo | — | — | — |
Composer 2
- Context
- 200K / 64K out
- Parameters
- —
- Price
- $0.50 / $2.50
- Speed
- 85 tok/s · 0.4s TTFT
- Modalities
- text → text
- License
- Proprietary
Prior Cursor in-house coding model (Mar 2026) - continued-pretrain + RL on long-horizon tasks; Cursor cites 61.7% Terminal-Bench 2.0 / 73.7% SWE-bench Multilingual. Terminal-Bench 2.0 score omitted from the 2.1 column.
Composer 2.5
- Context
- 200K / 64K out
- Parameters
- —
- Price
- $0.50 / $2.50
- Speed
- 90 tok/s · 0.35s TTFT
- Modalities
- text → text
- License
- Proprietary
Cursor's own agentic coding model (standard tier) — Cursor reports 69.3% Terminal-Bench 2.0 and 79.8% SWE-bench Multilingual; draws from the Cursor Models usage pool at $0.50/$2.50.
Benchmark charts
Winner bars are emphasized. Per-benchmark deltas sit above each chart.
These two models have no overlapping published benchmarks in our dataset. Compare specs and pricing instead.