Recommendation for OpenHands
OpenHands
Our top recommendation for OpenHands, based on the public evidence we track, is OpenAI: GPT-5.6 Sol.[1] Anthropic: Claude Fable 5 is the next-ranked alternative. Use for repository-level bug fixing where SWE-rebench results predict success: it resolves 64.5% of issues, the highest among all candidates.
About this recommendation
- Updated
- Sep 6, 2026
- Evidence through
- Sep 6, 2026
- Sources
- 4
- Revision
- v50
Decision audit
Why this result
Inspect the inputs and the computed order behind the recommendation.
Models screened
20
live candidates
Evaluation feeds
6
task-weighted
Winner coverage
79%
intended feed weight
Largest provider share
3 of 4
Anthropic
Sources evaluated
The task sets these weights before any model is scored.
| Evaluation feed | Weight | Winner result | Field measured |
|---|---|---|---|
| Berkeley Function Calling | 32% | not measured | 3/20 |
| LMArena Agent | 23% | #3 | 17/20 |
| price weight | 15% | 99/100 | 20/20 |
| Terminal-Bench 2.1 | 15% | #14 | 11/20 |
| SWE-rebench | 10% | #4 | 15/20 |
| OpenRouter usage | 5% | 97/100 | 20/20 |
Provider concentration
Each exact model is scored separately; provider identity is not a ranking input.
- Anthropic3 models
- OpenAI1 model
Decision table
Every published model is shown in computed order. Practitioner sources are distinct community threads, not the citations repeated in the prose below.
| Rank | Model | Relative score | Coverage | Practitioner evidence | Strongest measured reason |
|---|---|---|---|---|---|
| 01 | GPT-5.6 SolOpenAI | 73 | 79% | no linked practitioner threads | #3 LMArena Agent · #4 SWE-rebench |
| 02 | Claude Fable 5Anthropic | 72 | 79% | no linked practitioner threads | #1 SWE-rebench · #2 LMArena Agent |
| 03 | Claude Opus 4.6Anthropic | 66 | 73% | no linked practitioner threads | #15 LMArena Agent · #16 SWE-rebench |
| 04 | Claude Sonnet 4.6Anthropic | 65 | 73% | no linked practitioner threads | #13 SWE-rebench · #21 LMArena Agent |
Relative score combines normalized benchmark quality and signal coverage; independent practitioner evidence and freshness are bounded tie-breakers. It is an ordering score, not an absolute quality percentage. The writing model receives this order and cannot change it.
OpenAI: GPT-5.6 Sol ranks #3 of 47 on LMArena's agentic arena (score 9.3), measuring tool-use and multi-step task performance from human preference.
Best when: Consider only after reviewing the cited caution.
Leads on SWE-rebench with 64.5% resolution rate and ranks second in human preference for agentic tool use.
Best when: Use for repository-level bug fixing where SWE-rebench results predict success: it resolves 64.5% of issues, the highest among all candidates.
Tips
- Use for repository-level bug fixing where SWE-rebench results predict success: it resolves 64.5% of issues, the highest among all candidates.
- Deploy when human-rated agentic performance matters: it scores 10.2 on LMArena's agentic arena, second only across 47 models.
Mid-tier agentic preference scores without accompanying SWE-rebench data to confirm code execution capabilities.
Best when: Consider for tool-use tasks where ranking 16th of 47 on LMArena's agentic arena suffices.
Tips
- Consider for tool-use tasks where ranking 16th of 47 on LMArena's agentic arena suffices.
Watch out for
- Lack SWE-rebench verification: no evidence confirms repository-issue resolution performance, unlike top-ranked alternatives.
Lowest-ranked on LMArena's agentic arena with no SWE-rebench data to assess actual code execution performance.
Best when: Consider only after reviewing the cited caution.
Watch out for
- Avoid for agentic coding: it ranks 23rd of 47 on LMArena's agentic arena with the lowest score (0.5) among all candidates.
Frequently asked
- What is an alternative to OpenAI: GPT-5.6 Sol?
- Anthropic: Claude Fable 5 is the next-ranked option. Use for repository-level bug fixing where SWE-rebench results predict success: it resolves 64.5% of issues, the highest among all candidates.[1]
Sources
- 1
“Resolves 64.5045045045045% ± 1.4130078505728048 on SWE-rebench (#1 of 13) using tools, a continuously refreshed repository-issue evaluation with configuration recorded separately from the model.”
SWE-rebench · Benchmark · Jul 1, 2026 - 2
“Ranks #2 of 47 on LMArena's agentic arena (score 10.2), measuring tool-use and multi-step task performance from human preference.”
LMArena agentic arena · Benchmark · Sep 5, 2026 - 3
“Ranks #16 of 47 on LMArena's agentic arena (score 4.6), measuring tool-use and multi-step task performance from human preference.”
LMArena agentic arena · Benchmark · Sep 5, 2026 - 4
“Ranks #23 of 47 on LMArena's agentic arena (score 0.5), measuring tool-use and multi-step task performance from human preference.”
LMArena agentic arena · Benchmark · Sep 5, 2026
Rankings synthesized from community evidence and open benchmarks. See methodology. Not driven by vendor marketing.