Model comparison
GPT-5.4 mini vs Llama 3.1-70B
GPT-5.4 mini is the stronger model overall, scoring 45.0 to 29.6 on the Noometry Index. Llama 3.1-70B costs 4.2× less per token, which makes it the better buy when GPT-5.4 mini's lead doesn't matter for your workload.
Last verified . 24 shared benchmarks.
MetaSummary
- They share 24 benchmarks with published results for both. GPT-5.4 mini scores higher in 9 categories and Llama 3.1-70B in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.4 mini leads 45.5 to 13.5.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 88.9% for GPT-5.4 mini and 3.6% for Llama 3.1-70B.
- Llama 3.1-70B is cheaper at $0.40 / $0.40 per million input/output tokens, against $0.75 / $4.50 for GPT-5.4 mini.
- GPT-5.4 mini accepts more context: 400K tokens versus 128K.
- Llama 3.1-70B has downloadable open weights; the other is API-only.
Side by side
| GPT-5.4 mini | Llama 3.1-70B | |
|---|---|---|
| Provider | OpenAI | Meta |
| Noometry Index | 45.0 | 29.6 |
| Released | 2026-03-17 | 2024-07-23 |
| Weights | Proprietary | Open |
| Context window | 400K | 128K |
| Max output | 128K | 4K |
| Input $ / M tokens | $0.75 | $0.40 |
| Output $ / M tokens | $4.50 | $0.40 |
| Results tracked | 46 | 35 |
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Category by category
Coding GPT-5.4 mini leads
GPT-5.4 mini: 45.2 (#72), Llama 3.1-70B: 30.3 (#296)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| WeirdML | 60.3% | 9% |
| LMArena Coding | 1438 | 1260 |
| FrontierCode | 27% | — |
| LMArena WebDev | 1397 | — |
| SciCode | 49.9% | — |
| BigCodeBench Instruct | — | 46.1% |
| BigCodeBench Complete | — | 54.8% |
| ALE-Bench | 1,189 | — |
Agentic & Tool Use GPT-5.4 mini leads
GPT-5.4 mini: 29.9 (#81), Llama 3.1-70B: 25.1 (#112)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| TheAgentCompany | — | 6.9% |
| DeepResearch Bench | 36.3% | — |
| BALROG | — | 27.9% |
Reasoning GPT-5.4 mini leads
GPT-5.4 mini: 30.4 (#85), Llama 3.1-70B: 21.6 (#220)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1241 |
| DTBench | 80% | 60% |
| LMCA | 40.8% | 14.8% |
| Epoch Capabilities Index | 148.84 | 125.92 |
| ARC-AGI-2 | 18.9% | — |
| Kagi LLM Benchmark | 37.9% | — |
| NYT Connections (extended) | 61.8% | — |
| ARC-AGI-1 | 63.7% | — |
| CritPt | 10% | — |
| Chess Puzzles | 24% | — |
| Thematic Generalization | 61.7% | — |
| Mystery Game Puzzles | 11% | — |
| ForecastBench | 57 | — |
Math GPT-5.4 mini leads
GPT-5.4 mini: 45.5 (#75), Llama 3.1-70B: 13.5 (#304)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 88.9% | 3.6% |
| LMArena Math | 1419 | 1252 |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 9.8% | — |
| ProofBench | 21% | — |
| Omni-MATH | — | 21% |
| MATH Level 5 | — | 36.7% |
| FrontierMath (Feb 2025 set) | 28.3% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge GPT-5.4 mini leads
GPT-5.4 mini: 51.5 (#67), Llama 3.1-70B: 24.2 (#269)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| GPQA Diamond | 86.9% | 44.2% |
| LMArena Expert | 1435 | 1209 |
| SimpleQA Verified | 29.4% | — |
| MMLU-Pro | — | 65.3% |
| Vectara Hallucination Rate | 5.5% | — |
| GPQA (HELM) | — | 42.6% |
| MMLU | — | 80.1% |
Multimodal Not comparable
GPT-5.4 mini: 39.7 (#56), Llama 3.1-70B: —
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| LMArena Vision | 1245 | — |
Multilingual GPT-5.4 mini leads
GPT-5.4 mini: 51.9 (#96), Llama 3.1-70B: 38.8 (#225)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| LMArena Non-English | 1405 | 1219 |
| LMArena Chinese | 1446 | 1215 |
| LMArena French | 1440 | 1261 |
| LMArena German | 1409 | 1222 |
| LMArena Japanese | 1374 | 1132 |
| LMArena Korean | 1368 | 1140 |
| LMArena Russian | 1417 | 1234 |
| LMArena Spanish | 1405 | 1253 |
Instruction Following GPT-5.4 mini leads
GPT-5.4 mini: 74.1 (#102), Llama 3.1-70B: 65.3 (#223)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| LMArena Instruction Following | 1405 | 1231 |
| IFEval | — | 82.1% |
Long Context GPT-5.4 mini leads
GPT-5.4 mini: 43.0 (#112), Llama 3.1-70B: 37.6 (#214)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| LMArena Longer Query | 1407 | 1241 |
Writing & Preference GPT-5.4 mini leads
GPT-5.4 mini: 64.0 (#58), Llama 3.1-70B: 35.4 (#267)
| Benchmark | GPT-5.4 mini | Llama 3.1-70B |
|---|---|---|
| LMArena Text | 1412 | 1261 |
| LMArena Creative Writing | 1370 | 1232 |
| EQ-Bench Creative Writing | 1665 | 784 |
| LMArena Multi-Turn | 1429 | 1256 |
| WildBench | — | 75.8% |
Frequently asked questions
Is GPT-5.4 mini better than Llama 3.1-70B?
GPT-5.4 mini is the stronger model overall, scoring 45.0 to 29.6 on the Noometry Index. Llama 3.1-70B costs 4.2× less per token, which makes it the better buy when GPT-5.4 mini's lead doesn't matter for your workload.
Which is cheaper, GPT-5.4 mini or Llama 3.1-70B?
Llama 3.1-70B is cheaper. It lists at $0.40 per million input tokens and $0.40 per million output tokens; GPT-5.4 mini lists at $0.75 and $4.50.
Is GPT-5.4 mini or Llama 3.1-70B better for coding?
GPT-5.4 mini scores higher on coding benchmarks: 45.2 versus 30.3 in the Noometry coding category.
Which has the bigger context window?
GPT-5.4 mini does, with 400K tokens against 128K.
How many benchmarks do GPT-5.4 mini and Llama 3.1-70B share?
24 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Llama 3.1-70B has 35.