Model comparison

Command A vs GPT-5.3 Chat

GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 36.5 on the Noometry Index.

Last verified October 10, 2026. 18 shared benchmarks.

Command A

Cohere

36.5

Rank #215 Confirmed

GPT-5.3 Chat OpenAI

42.8

Rank #109 Confirmed

Summary

They share 18 benchmarks with published results for both. Command A scores higher in 0 categories and GPT-5.3 Chat in 8 categories; 8 gaps are clear of the uncertainty.
The widest gap is in writing & preference, where GPT-5.3 Chat leads 63.1 to 47.6.
Command A is cheaper at $2.50 / $10 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Chat.
Command A accepts more context: 256K tokens versus 128K.
Command A has downloadable open weights; the other is API-only.

Side by side

Command A and GPT-5.3 Chat specifications
	Command A	GPT-5.3 Chat
Provider	Cohere	OpenAI
Noometry Index	36.5	42.8
Released	2025-03-13	2026-03-03
Weights	Open	Proprietary
Context window	256K	128K
Max output	8K	16K
Input $ / M tokens	$2.50	$1.75
Output $ / M tokens	$10	$14
Results tracked	24	18

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Category by category

Coding GPT-5.3 Chat leads

Command A: 27.2 (#322), GPT-5.3 Chat: 41.4 (#124)

Coding benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Coding	1330	1408
Aider Polyglot	12%	—

Agentic & Tool Use Not comparable

Command A: 35.9 (#40), GPT-5.3 Chat: —

Agentic & Tool Use benchmarks
Benchmark	Command A	GPT-5.3 Chat
Berkeley Function Calling Leaderboard	57.1%	—

Reasoning GPT-5.3 Chat leads

Command A: 18.3 (#283), GPT-5.3 Chat: 28.5 (#102)

Reasoning benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Hard Prompts	1326	1399
Kagi LLM Benchmark	28.8%	—
DTBench	61.3%	—
LMCA	10.3%	—

Math GPT-5.3 Chat leads

Command A: 36.2 (#171), GPT-5.3 Chat: 38.2 (#142)

Math benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Math	1300	1389

Knowledge GPT-5.3 Chat leads

Command A: 37.1 (#159), GPT-5.3 Chat: 38.8 (#140)

Knowledge benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Expert	1295	1397
Vectara Hallucination Rate	9.3%	—

Multilingual GPT-5.3 Chat leads

Command A: 45.3 (#170), GPT-5.3 Chat: 50.3 (#124)

Multilingual benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Non-English	1313	1382
LMArena Chinese	1327	1432
LMArena French	1351	1397
LMArena German	1341	1384
LMArena Japanese	1285	1352
LMArena Korean	1285	1346
LMArena Russian	1314	1400
LMArena Spanish	1347	1371

Instruction Following GPT-5.3 Chat leads

Command A: 69.1 (#177), GPT-5.3 Chat: 72.8 (#129)

Instruction Following benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Instruction Following	1309	1378

Long Context GPT-5.3 Chat leads

Command A: 40.6 (#151), GPT-5.3 Chat: 42.6 (#120)

Long Context benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Longer Query	1334	1396

Writing & Preference GPT-5.3 Chat leads

Command A: 47.6 (#208), GPT-5.3 Chat: 63.1 (#68)

Writing & Preference benchmarks
Benchmark	Command A	GPT-5.3 Chat
LMArena Text	1331	1389
LMArena Creative Writing	1319	1355
EQ-Bench Creative Writing	1145	1690
LMArena Multi-Turn	1339	1412

Frequently asked questions

Is Command A better than GPT-5.3 Chat?

GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 36.5 on the Noometry Index.

Which is cheaper, Command A or GPT-5.3 Chat?

Command A is cheaper. It lists at $2.50 per million input tokens and $10 per million output tokens; GPT-5.3 Chat lists at $1.75 and $14.

Is Command A or GPT-5.3 Chat better for coding?

GPT-5.3 Chat scores higher on coding benchmarks: 41.4 versus 27.2 in the Noometry coding category.

Which has the bigger context window?

Command A does, with 256K tokens against 128K.

How many benchmarks do Command A and GPT-5.3 Chat share?

18 benchmarks have published results for both models. Command A has 24 scored results on Noometry and GPT-5.3 Chat has 18.