Noometry

Model comparison

Command R+ vs GPT-5.3 Codex

GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 32.4 on the Noometry Index.

Last verified . 1 shared benchmarks.

Command R+ Cohere

32.4

Rank #257 Confirmed

GPT-5.3 Codex OpenAI

45.8

Rank #69 Reported

Summary

  • They share 1 benchmark with published results for both. Command R+ scores higher in 0 categories and GPT-5.3 Codex in 1 category; one gap is clear of the uncertainty.
  • The widest gap is in coding, where GPT-5.3 Codex leads 48.6 to 29.1.
  • Command R+ 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 128K.
  • Command R+ has downloadable open weights; the other is API-only.

Side by side

Command R+GPT-5.3 Codex
ProviderCohereOpenAI
Noometry Index32.445.8
Released2024-08-302026-02-05
WeightsOpenProprietary
Context window128K400K
Max output4K128K
Input $ / M tokens$2.50$1.75
Output $ / M tokens$10$14
Results tracked348

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Category by category

Coding GPT-5.3 Codex leads

Command R+: 29.1 (#309), GPT-5.3 Codex: 48.6 (#56)

BenchmarkCommand R+GPT-5.3 Codex
SWE-bench Verified—74.8%
LMArena WebDev—1409
WeirdML—79.3%
BigCodeBench Instruct33.8%—
LiveBench Coding19.1%—
LMArena Coding1187—
BigCodeBench Complete41.9%—
ALE-Bench—1,655
HumanEval+56.7%—
MBPP+63.5%—

Agentic & Tool Use Not comparable

Command R+: —, GPT-5.3 Codex: 48.0 (#9)

BenchmarkCommand R+GPT-5.3 Codex
Terminal-Bench—78.4%
METR Time Horizons—74.5%
Vending-Bench 2—5,940

Reasoning Not comparable

Command R+: 9.2 (#344), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
Epoch Capabilities Index119.34156.77
SimpleBench17.4%—
LiveBench Reasoning24.8%—
LMArena Hard Prompts1186—
DTBench54.9%—
LiveBench Data Analysis38.1%—
LMCA5%—
LiveBench31.8%—

Math Not comparable

Command R+: 28.9 (#242), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
LiveBench Math21.3%—
LMArena Math1188—

Knowledge Not comparable

Command R+: 36.4 (#169), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
Vectara Hallucination Rate6.9%—
LMArena Expert1174—
MMLU69.4%—

Multilingual Not comparable

Command R+: 38.6 (#227), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
LMArena Non-English1216—
LMArena Chinese1226—
LMArena French1209—
LMArena German1216—
LMArena Japanese1166—
LMArena Korean1138—
LMArena Russian1227—
LMArena Spanish1189—

Instruction Following Not comparable

Command R+: 60.0 (#254), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
LiveBench Instruction Following57.6%—
LMArena Instruction Following1197—

Long Context Not comparable

Command R+: 37.3 (#219), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
LMArena Longer Query1230—

Writing & Preference Not comparable

Command R+: 43.5 (#228), GPT-5.3 Codex: —

BenchmarkCommand R+GPT-5.3 Codex
LMArena Text1229—
LMArena Creative Writing1235—
LMArena Multi-Turn1213—
LiveBench Language29.7%—

Frequently asked questions

Is Command R+ better than GPT-5.3 Codex?

GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 32.4 on the Noometry Index.

Which is cheaper, Command R+ or GPT-5.3 Codex?

Command R+ 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 R+ or GPT-5.3 Codex better for coding?

GPT-5.3 Codex scores higher on coding benchmarks: 48.6 versus 29.1 in the Noometry coding category.

Which has the bigger context window?

GPT-5.3 Codex does, with 400K tokens against 128K.

How many benchmarks do Command R+ and GPT-5.3 Codex share?

1 benchmark has published results for both models. Command R+ has 34 scored results on Noometry and GPT-5.3 Codex has 8.

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