Latest release
Choose Command A+
Command A+ is the newer release (May 2026, against April 2026 for Claude Mythos Preview).
Claude Mythos Preview vs Command A+: price, context and capabilities
Choose Command A+ for the latest release; on the other points the two are level or the data is missing.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Command A+ is the newer model (May 2026, against April 2026).
- Only Claude Mythos Preview offers reasoning, batch api.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Specifications side by side
| Claude Mythos Preview | Command A+ | |
|---|---|---|
| Provider | Anthropic | Cohere |
| Category | Language models | Language models |
| Status | Deprecated · Limited access | Generally available |
| Headline price | No data | No data |
| Input | No data | No data |
| Output | No data | No data |
| Cached input | No data | No data |
| Context window | No data | 128k |
| Max output | No data | No data |
| Released | April 2026 | May 2026 |
| Knowledge cutoff | No data | No data |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Batch API | Vision, Tool calling, Structured output |
| API model id | claude-mythos-preview | command-a-plus-05-2026 |
Benchmarks side by side
Leader in bold.
| Benchmark | Claude Mythos Preview | Command A+ |
|---|---|---|
| Intelligence Index | No data | 13.1 |
| Terminal-Bench Hard | No data | 25% |
| SciCode | No data | 38.5% |
| GPQA Diamond | No data | 76.1% |
| Humanity's Last Exam | No data | 12% |
| IFBench (instruction following) | No data | 73.9% |
| τ²-Bench (agentic tool use) | No data | 80.7% |
| MMMU-Pro (visual reasoning) | No data | 63.2% |
| Long-context reasoning (AA-LCR) | No data | 52.7% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose Claude Mythos Preview or Command A+?
Choose Command A+ for the latest release; on the other points the two are level or the data is missing.
Which is cheaper, Claude Mythos Preview or Command A+?
A price comparison is not possible: one of them has no comparable published price.
What is the difference between Claude Mythos Preview and Command A+?
Claude Mythos Preview is made by Anthropic and Command A+ by Cohere. A price comparison is not possible: one of them has no comparable published price. Command A+ is the newer model (May 2026, against April 2026). Only Claude Mythos Preview offers reasoning, batch api.
Which is newer, Claude Mythos Preview or Command A+?
Command A+ was released on May 2026 and Claude Mythos Preview on April 2026.