Model comparison
GPT-5.3 Codex vs Phi 3 Mini 4k Instruct June 2024
GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 30.7 on the Noometry Index.
Last verified . 0 shared benchmarks.
MicrosoftSummary
- The widest gap is in coding, where GPT-5.3 Codex leads 48.5 to 31.2.
- Phi 3 Mini 4k Instruct June 2024 has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 45.5 | 30.7 |
| Released | 2026-02-05 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 8 | 15 |
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Category by category
Coding GPT-5.3 Codex leads
GPT-5.3 Codex: 48.5 (#51), Phi 3 Mini 4k Instruct June 2024: 31.2 (#275)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| SWE-bench Verified | 74.8% | — |
| LMArena WebDev | 1408 | — |
| WeirdML | 79.3% | — |
| LMArena Coding | — | 1093 |
| ALE-Bench | 1,655 | — |
Agentic & Tool Use Not comparable
GPT-5.3 Codex: 47.8 (#9), Phi 3 Mini 4k Instruct June 2024: —
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| Terminal-Bench | 78.4% | — |
| METR Time Horizons | 74.5% | — |
| Vending-Bench 2 | 5,940 | — |
Reasoning Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 19.9 (#229)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Hard Prompts | — | 1088 |
| Epoch Capabilities Index | 156.84 | — |
Math Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 30.4 (#209)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Math | — | 1152 |
Knowledge Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 28.1 (#240)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Expert | — | 1051 |
Multilingual Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 26.0 (#277)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Non-English | — | 1013 |
| LMArena Chinese | — | 1033 |
| LMArena German | — | 1031 |
| LMArena Japanese | — | 954 |
| LMArena Korean | — | 880 |
| LMArena Russian | — | 1019 |
Instruction Following Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 54.3 (#277)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Instruction Following | — | 1058 |
Long Context Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 31.6 (#272)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Longer Query | — | 1042 |
Writing & Preference Not comparable
GPT-5.3 Codex: —, Phi 3 Mini 4k Instruct June 2024: 29.7 (#289)
| Benchmark | GPT-5.3 Codex | Phi 3 Mini 4k Instruct June 2024 |
|---|---|---|
| LMArena Text | — | 1080 |
| LMArena Creative Writing | — | 1045 |
| LMArena Multi-Turn | — | 1049 |
Frequently asked questions
Is GPT-5.3 Codex better than Phi 3 Mini 4k Instruct June 2024?
GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 30.7 on the Noometry Index.
Is GPT-5.3 Codex or Phi 3 Mini 4k Instruct June 2024 better for coding?
GPT-5.3 Codex scores higher on coding benchmarks: 48.5 versus 31.2 in the Noometry coding category.
How many benchmarks do GPT-5.3 Codex and Phi 3 Mini 4k Instruct June 2024 share?
0 benchmarks have published results for both models. GPT-5.3 Codex has 8 scored results on Noometry and Phi 3 Mini 4k Instruct June 2024 has 15.