Model comparison
Command A Plus vs GPT-5.5 Pro
GPT-5.5 Pro has enough public results to be ranked (#8); Command A Plus does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
CohereSummary
- They share 1 benchmark with published results for both. Command A Plus scores higher in 0 categories and GPT-5.5 Pro in 1 category; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.3 to 22.4.
- The biggest single-benchmark swing is CritPt: 0.3% for Command A Plus and 30.6% for GPT-5.5 Pro.
- Command A Plus is cheaper at $2.50 / $10 per million input/output tokens, against $30 / $180 for GPT-5.5 Pro.
- GPT-5.5 Pro accepts more context: 1.05M tokens versus 128K.
- Command A Plus has downloadable open weights; the other is API-only.
Side by side
| Command A Plus | GPT-5.5 Pro | |
|---|---|---|
| Provider | Cohere | OpenAI |
| Noometry Index | 35.3 | 64.3 |
| Released | 2026-05-20 | 2026-04-23 |
| Weights | Open | Proprietary |
| Context window | 128K | 1.05M |
| Max output | 64K | 128K |
| Input $ / M tokens | $2.50 | $30 |
| Output $ / M tokens | $10 | $180 |
| Results tracked | 2 | 14 |
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Category by category
Coding Not comparable
Command A Plus: 39.3, GPT-5.5 Pro: —
| Benchmark | Command A Plus | GPT-5.5 Pro |
|---|---|---|
| SciCode | 37.8% | — |
Reasoning GPT-5.5 Pro leads
Command A Plus: 22.4, GPT-5.5 Pro: 73.3 (#10)
| Benchmark | Command A Plus | GPT-5.5 Pro |
|---|---|---|
| CritPt | 0.3% | 30.6% |
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| Chess Puzzles | — | 64% |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| Epoch Capabilities Index | — | 162.07 |
Math Not comparable
Command A Plus: —, GPT-5.5 Pro: 84.0 (#10)
| Benchmark | Command A Plus | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge Not comparable
Command A Plus: —, GPT-5.5 Pro: 64.1 (#19)
| Benchmark | Command A Plus | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
Frequently asked questions
Is Command A Plus better than GPT-5.5 Pro?
GPT-5.5 Pro has enough public results to be ranked (#8); Command A Plus does not yet, so treat this comparison as directional.
Which is cheaper, Command A Plus or GPT-5.5 Pro?
Command A Plus is cheaper. It lists at $2.50 per million input tokens and $10 per million output tokens; GPT-5.5 Pro lists at $30 and $180.
Which has the bigger context window?
GPT-5.5 Pro does, with 1.05M tokens against 128K.
How many benchmarks do Command A Plus and GPT-5.5 Pro share?
1 benchmark has published results for both models. Command A Plus has 2 scored results on Noometry and GPT-5.5 Pro has 14.