Model comparison
Command A vs GPT-5.3 Codex
GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 35.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
CohereSummary
- The widest gap is in coding, where GPT-5.3 Codex leads 48.5 to 26.8.
- Command A is cheaper at $2.50 / $10 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Codex.
- GPT-5.3 Codex accepts more context: 400K tokens versus 256K.
- Command A has downloadable open weights; the other is API-only.
Side by side
| Command A | GPT-5.3 Codex | |
|---|---|---|
| Provider | Cohere | OpenAI |
| Noometry Index | 35.9 | 45.5 |
| Released | 2025-03-13 | 2026-02-05 |
| Weights | Open | Proprietary |
| Context window | 256K | 400K |
| Max output | 8K | 128K |
| Input $ / M tokens | $2.50 | $1.75 |
| Output $ / M tokens | $10 | $14 |
| Results tracked | 24 | 8 |
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Category by category
Coding GPT-5.3 Codex leads
Command A: 26.8 (#317), GPT-5.3 Codex: 48.5 (#51)
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| SWE-bench Verified | — | 74.8% |
| Aider Polyglot | 12% | — |
| LMArena WebDev | — | 1408 |
| WeirdML | — | 79.3% |
| LMArena Coding | 1331 | — |
| ALE-Bench | — | 1,655 |
Agentic & Tool Use GPT-5.3 Codex leads
Command A: 35.7 (#36), GPT-5.3 Codex: 47.8 (#9)
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| Terminal-Bench | — | 78.4% |
| Berkeley Function Calling Leaderboard | 57.1% | — |
| METR Time Horizons | — | 74.5% |
| Vending-Bench 2 | — | 5,940 |
Reasoning Not comparable
Command A: 17.7 (#276), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| Kagi LLM Benchmark | 28.8% | — |
| LMArena Hard Prompts | 1326 | — |
| DTBench | 61.3% | — |
| LMCA | 10.3% | — |
| Epoch Capabilities Index | — | 156.84 |
Math Not comparable
Command A: 33.5 (#172), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| LMArena Math | 1300 | — |
Knowledge Not comparable
Command A: 36.5 (#157), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| Vectara Hallucination Rate | 9.3% | — |
| LMArena Expert | 1295 | — |
Multilingual Not comparable
Command A: 45.5 (#166), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| LMArena Non-English | 1313 | — |
| LMArena Chinese | 1327 | — |
| LMArena French | 1352 | — |
| LMArena German | 1341 | — |
| LMArena Japanese | 1283 | — |
| LMArena Korean | 1285 | — |
| LMArena Russian | 1314 | — |
| LMArena Spanish | 1346 | — |
Instruction Following Not comparable
Command A: 69.3 (#172), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| LMArena Instruction Following | 1309 | — |
Long Context Not comparable
Command A: 40.6 (#147), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| LMArena Longer Query | 1334 | — |
Writing & Preference Not comparable
Command A: 47.8 (#204), GPT-5.3 Codex: —
| Benchmark | Command A | GPT-5.3 Codex |
|---|---|---|
| LMArena Text | 1331 | — |
| LMArena Creative Writing | 1319 | — |
| EQ-Bench Creative Writing | 1145 | — |
| LMArena Multi-Turn | 1338 | — |
Frequently asked questions
Is Command A better than GPT-5.3 Codex?
GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 35.9 on the Noometry Index.
Which is cheaper, Command A or GPT-5.3 Codex?
Command A is cheaper. It lists at $2.50 per million input tokens and $10 per million output tokens; GPT-5.3 Codex lists at $1.75 and $14.
Is Command A or GPT-5.3 Codex better for coding?
GPT-5.3 Codex scores higher on coding benchmarks: 48.5 versus 26.8 in the Noometry coding category.
Which has the bigger context window?
GPT-5.3 Codex does, with 400K tokens against 256K.
How many benchmarks do Command A and GPT-5.3 Codex share?
0 benchmarks have published results for both models. Command A has 24 scored results on Noometry and GPT-5.3 Codex has 8.