isitsota / categories / Coding
Coding · Oct 13, 2026
Who is SOTA in Coding?
Claude Opus 5.5 & Claude Sonnet 5.5
Software engineering skill. Terminal-Bench 4.0 and SWE-bench Pro V2 HARD are the primaries. SWE-bench Verified is shown and ignored for the crown. As of Oct 13, 2026, Claude Opus 5.5 & Claude Sonnet 5.5 share Coding. Claude Opus 5.5 is tied for SOTA in Coding with Claude Sonnet 5.5, within the…
Standings · overall
The board
| # | Model | State | Confidence |
|---|---|---|---|
| 1 | AClaude Opus 5.5 Anthropic | Co-SOTA | medium |
| 1 | OGPT-5 OpenAI | Near-SOTA | medium |
| 3 | AClaude Sonnet 5.5 Anthropic | Co-SOTA | medium |
| 4 | OO3 Pro OpenAI | Not SOTA · #4 | medium |
| 5 | OGPT-6.1 Sol OpenAI | Not SOTA · #5 | medium |
| 5 | OGPT-6 Astra OpenAI | Not SOTA · #5 | medium |
| 7 | GGemini 2.5 Pro Preview 06.05 Google DeepMind | Not SOTA · #7 | medium |
| 8 | AClaude Fable 5.1 Anthropic | Not SOTA · #8 | medium |
| 9 | OO3 OpenAI | Not SOTA · #9 | medium |
| 10 | AClaude Opus 5 Anthropic | Not SOTA · #10 | medium |
| 11 | OGPT-6 Sol OpenAI | Not SOTA · #11 | medium |
| 12 | xGrok 4 0709 xAI | Not SOTA · #12 | medium |
Evidence recipe
What can move this crown
- Terminal-Bench 4.0 — primary, weight 1
- SWE-bench Pro V2 HARD — primary, weight 1 (display only, cannot crown)
- LMArena Text (style-controlled, coding) — primary, weight 0.6 (display only, cannot crown)
- Terminal-Bench 2.0 — secondary, weight 0.35 (display only, cannot crown)
- Artificial Analysis Coding Index — secondary, weight 0.45
- Aider Polyglot — secondary, weight 0.35
- SWE-bench Verified — display, weight 0 (display only, cannot crown)