Head-to-head · up to four models
Settle it race by race.
Overall scores hide trade-offs. Line models up to see who wins each race, by how much, and what you pay for the difference.
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Verdict
Opus 5.5 leads the overall intelligence race by 0.1 pts
Photo finishover GPT-6.1 Sol. Race wins below decide most real choices.
Opus 5.56 of 10 headline races · 33 of 54 overall
Coding, Science, Writing & Language, Tool Use & Agents, Long Context, Trust & Factuality
GPT-6.1 Sol4 of 10 headline races · 21 of 54 overall
Hard Reasoning, Math, Multimodal, Speed & Cost
Capability shape
Scores normalised to 0 to 100 across language races. Hover a name to isolate it.
Where Opus 5.5 wins biggest
- Long-Horizon Autonomy7.7 hrsDominant lead
- Agentic Coding6.5 ptsDominant lead
- Computer Use6.0 ptsDominant lead
- Terminal & DevOps4.7 ptsDominant lead
- Full-Stack Apps4.2 ptsDominant lead
Where GPT-6.1 Sol wins biggest
- Speech & Audio23.2 ptsDominant lead
- Cost-Efficiency8.4 ptsDominant lead
- Multimodal Understanding6.5 ptsDominant lead
- Speed & Cost6.0 ptsDominant lead
- Video Understanding3.6 ptsDominant lead
Race by race
Dots sit at true distances. The white tick is the best score anyone has right now.
RaceGapOpus 5.5GPT-6.1 Sol
- Opus 5.588.7#1GPT-6.1 Sol88.6#2
- Opus 5.594.4#1GPT-6.1 Sol90.7#6
- Opus 5.591.6#4GPT-6.1 Sol91.8#3
- Opus 5.590.2#6GPT-6.1 Sol91.9#3
- Opus 5.591.3#4GPT-6.1 Sol90.8#5
- Opus 5.592.6#1GPT-6.1 Sol92.6#1
- Opus 5.582.8#12GPT-6.1 Sol89.3#3
- Opus 5.594.0#1GPT-6.1 Sol90.6#6
- Opus 5.591.6#4GPT-6.1 Sol91.0#5
- Opus 5.543.2#24GPT-6.1 Sol49.2#14
- Opus 5.593.0#2GPT-6.1 Sol90.1#5
Overall Intelligence over time
Weekly snapshots since January 2025. Hover for exact scores.
Specs and pricing
Best value in each row is highlighted.
| Opus 5.5 | GPT-6.1 Sol | |
|---|---|---|
| Released | Sep 22, 2026 | Sep 29, 2026 |
| Weights | Closed | Closed |
| Parameters | Undisclosed | Undisclosed |
| Context window | 1M | 1M |
| Max output | 128K | 128K |
| Speed | 96 tok/s | 121 tok/s |
| First token | 4.4s | 4s |
| Input per 1M tokens | $4 | $2 |
| Output per 1M tokens | $20 | $10 |
| Inputs | text, image | text, image, audio, video |
| Outputs | text | text |