Model comparison
Command A vs Mercury
Mercury is the stronger model overall, scoring 37.6 to 36.5 on the Noometry Index.
Last verified . 9 shared benchmarks.
CohereSummary
- They share 9 benchmarks with published results for both. Command A scores higher in 5 categories and Mercury in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in coding, where Mercury leads 38.7 to 27.2.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 28.8% for Command A and 21.6% for Mercury.
- Command A has downloadable open weights; the other is API-only.
Side by side
| Command A | Mercury | |
|---|---|---|
| Provider | Cohere | Inception |
| Noometry Index | 36.5 | 37.6 |
| Released | 2025-03-13 | — |
| Weights | Open | Proprietary |
| Context window | 256K | — |
| Max output | 8K | — |
| Input $ / M tokens | $2.50 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 24 | 9 |
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Category by category
Coding Mercury leads
Command A: 27.2 (#322), Mercury: 38.7 (#170)
| Benchmark | Command A | Mercury |
|---|---|---|
| LMArena Coding | 1330 | 1322 |
| Aider Polyglot | 12% | — |
Agentic & Tool Use Not comparable
Command A: 35.9 (#40), Mercury: —
| Benchmark | Command A | Mercury |
|---|---|---|
| Berkeley Function Calling Leaderboard | 57.1% | — |
Reasoning Too close to call
Command A: 18.3 (#283), Mercury: 17.5 (#293)
| Benchmark | Command A | Mercury |
|---|---|---|
| Kagi LLM Benchmark | 28.8% | 21.6% |
| LMArena Hard Prompts | 1326 | 1285 |
| DTBench | 61.3% | — |
| LMCA | 10.3% | — |
Math Not comparable
Command A: 36.2 (#171), Mercury: —
| Benchmark | Command A | Mercury |
|---|---|---|
| LMArena Math | 1300 | — |
Knowledge Not comparable
Command A: 37.1 (#159), Mercury: —
| Benchmark | Command A | Mercury |
|---|---|---|
| Vectara Hallucination Rate | 9.3% | — |
| LMArena Expert | 1295 | — |
Multilingual Command A leads
Command A: 45.3 (#170), Mercury: 41.6 (#206)
| Benchmark | Command A | Mercury |
|---|---|---|
| LMArena Non-English | 1313 | 1260 |
| LMArena Chinese | 1327 | — |
| LMArena French | 1351 | — |
| LMArena German | 1341 | — |
| LMArena Japanese | 1285 | — |
| LMArena Korean | 1285 | — |
| LMArena Russian | 1314 | — |
| LMArena Spanish | 1347 | — |
Instruction Following Command A leads
Command A: 69.1 (#177), Mercury: 65.2 (#224)
| Benchmark | Command A | Mercury |
|---|---|---|
| LMArena Instruction Following | 1309 | 1239 |
Long Context Command A leads
Command A: 40.6 (#151), Mercury: 38.4 (#198)
| Benchmark | Command A | Mercury |
|---|---|---|
| LMArena Longer Query | 1334 | 1266 |
Writing & Preference Command A leads
Command A: 47.6 (#208), Mercury: 46.2 (#221)
| Benchmark | Command A | Mercury |
|---|---|---|
| LMArena Text | 1331 | 1282 |
| LMArena Creative Writing | 1319 | 1191 |
| LMArena Multi-Turn | 1339 | 1282 |
| EQ-Bench Creative Writing | 1145 | — |
Frequently asked questions
Is Command A better than Mercury?
Mercury is the stronger model overall, scoring 37.6 to 36.5 on the Noometry Index.
Is Command A or Mercury better for coding?
Mercury scores higher on coding benchmarks: 38.7 versus 27.2 in the Noometry coding category.
How many benchmarks do Command A and Mercury share?
9 benchmarks have published results for both models. Command A has 24 scored results on Noometry and Mercury has 9.