Quick answer: Llama 3.3 70B Instruct is Meta's December 2024 improved 70B model, scoring 96.0% on AI2 Reasoning Challenge, 86.0% on MMLU, 77.0% on MATH, 88.4% on HumanEval, and 68.9% on MMLU-Pro. It significantly improves on Llama 3.1 70B — notably +27pp MATH (77% vs 50%) — while maintaining the same 128K context window.
Where Llama 3.3 70B leads
Where it lags
Best for: Open-weight 70B deployments requiring strong math/coding; teams on Llama 3.1 70B seeking improvements without switching to Llama 4; complex STEM tasks.
Llama 3.3 70B Instruct (released December 6, 2024) is Meta's iterative improvement to the Llama 3.1 70B architecture, trained with enhanced data and improved instruction tuning. The most notable improvement is MATH: 77.0% vs approximately 50% for Llama 3.1 70B — a 27-percentage-point gain on competition mathematics.
The model achieves 88.4% HumanEval (vs ~72% for 3.1 70B) and 68.9% MMLU-Pro, placing it solidly in the frontier open-weight tier at the 70B scale. It maintains the same 128K context window and architecture, making it a drop-in upgrade for most Llama 3.1 70B deployments.
For teams choosing between Llama 3.1 70B and 3.3 70B, Llama 3.3 is the clear choice: substantially better math, coding, and knowledge with minimal migration overhead.
| Field | Value |
|---|---|
| Organization | Meta |
| Parameters | 70B (dense) |
| Context window | 128,000 tokens |
| License | Llama 3.3 License |
| HuggingFace | meta-llama/Llama-3.3-70B-Instruct |
| Release date | December 6, 2024 |
| Knowledge cutoff | August 2024 |
| Modality | Text only |
Open weights under Llama 3.3 License on Hugging Face. Available via hosted providers (Together AI, Groq, etc.) at market rates.
| Benchmark | Score | Source | Date |
|---|---|---|---|
| AI2 Reasoning Challenge | 96.0% | Benchgen evaluation | 2025-07 |
| MMLU | 86.0% | Benchgen evaluation | 2025-07 |
| MATH | 77.0% | Benchgen evaluation | 2025-07 |
| HumanEval | 88.4% | Benchgen evaluation | 2025-07 |
| MMLU-Pro | 68.9% | Benchgen evaluation | 2025-07 |
| BigCodeBench | 28.4% | Benchgen evaluation | 2025-07 |
| Model | MATH | HumanEval | MMLU-Pro | License |
|---|---|---|---|---|
| Llama 3.3 70B Instruct | 77.0% | 88.4% | 68.9% | Llama 3.3 |
| Llama 3.1 70B Instruct | ~50% | ~72% | — | Llama 3.1 |
| Llama 4 Maverick | — | — | 80.5% | Llama 4 |
| DeepSeek-V3 | 90.2% | — | — | MIT |
Llama 3.3 70B vs 3.1 70B: +27pp MATH, +16pp HumanEval — a clear upgrade with minimal migration overhead. vs Llama 4 Maverick: 4 Maverick wins on MMLU-Pro (80.5% vs 68.9%) and context (1M vs 128K) but requires a MoE-aware inference stack.
Specs from Meta's official Llama 3.3 announcement (December 2024) and Benchgen evaluations. Last updated 2026-07-24.
This model isn’t on any benchmark leaderboard yet.