Model comparison
Composer 2.5 vs SWE-1.7
Head-to-head evidence from 3 shared benchmark results across 2 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Evidence parity. Composer 2.5 and SWE-1.7 share 3 comparable benchmark results. 1 of 8 categories are comparable. 2 results are unique to Composer 2.5; 1 to SWE-1.7.
Updated July 18, 2026- Shared results
- 3
- Composer 2.5 only
- 2
- SWE-1.7 only
- 1
- Comparable categories
- 1 / 8
Treat this as a split decision. Composer 2.5 makes more sense if its workflow fits your team better; SWE-1.7 is the better fit if agentic is the priority or you need the larger 256K context window.
Confidence note. This is a partial-evidence comparison with 3 shared benchmark results across 2 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Composer 2.5 and SWE-1.7 finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.
SWE-1.7 gives you the larger context window at 256K, compared with 200K for Composer 2.5.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Composer 2.5 | Δ | SWE-1.7 |
|---|---|---|---|
| Agentic | Composer 2.569.3 | Margin→ 12.2 | SWE-1.781.5 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
Terminal-Bench 2.0
AgenticA 69.3%B 81.5%Winner: SWE-1.7Δ 12.2Terminal-Bench 2.0: Composer 2.5 scored 69.3%; SWE-1.7 scored 81.5%. SWE-1.7 wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Composer 2.5 | SWE-1.7 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Composer 2.5$0.5 input / $2.5 output | SWE-1.7Not available | A complete price comparison is not available. |
| Generation speedtokens per second | Composer 2.5Not available | SWE-1.7Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Composer 2.5Not available | SWE-1.7Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Composer 2.5200K | SWE-1.7256K | SWE-1.7 lists the larger context window. |
Benchmark Deep Dive
AgenticSWE-1.7 wins1 benchmarks
| Benchmark | Composer 2.5 | SWE-1.7 | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 69.3% | 81.5% | SWE-1.7 leads |
Frequently Asked Questions (2)
Which is better, Composer 2.5 or SWE-1.7?
Composer 2.5 and SWE-1.7 are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.
Which is better for agentic tasks, Composer 2.5 or SWE-1.7?
SWE-1.7 has the edge for agentic tasks in this comparison, averaging 81.5 versus 69.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Related Comparisons
Explore More
The AI models change fast. We track them for you.
A weekly brief for engineers and researchers covering new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.