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Llama 3.1 70B Instruct vs Phi-4

SpecLlama 3.1 70B InstructPhi-4
Respan Index10.0 (#159)9.0 (#160)
Blended price per 1M$0.4$0.088
Context window128K16K
Input / output per 1M$0.4 / $0.4$0.07 / $0.14
Max output-16K
Inputtexttext
Released2024-07-232024-12-12

Respan Index by category

Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.

CategoryLlama 3.1 70B InstructPhi-4
Coding0.4 Llama 3.1 70B Instruct0.8* Phi-4
Agents4.9 Llama 3.1 70B Instruct0.7 Phi-4
Reasoning15.3 Llama 3.1 70B Instruct17.1 Phi-4
Knowledge & language2.1 Llama 3.1 70B Instruct3.2 Phi-4
Human preference30.6 Llama 3.1 70B Instruct26.9 Phi-4

* Estimated: no published scores in that category. How the Respan Index works

Benchmarks both report

Phi-4 leads on 6 of the 9 benchmarks both report. Higher is better. Each score links to where it was published.

BenchmarkLlama 3.1 70B InstructPhi-4
GPQA Diamond44.2%56.1%
MATH Level 5 (Epoch AI)36.7%64.9%
OTIS Mock AIME 2024-2025 (Epoch AI)3.6%13.8%
LMArena Elo12931256
BALROG (BALROG)27.9%11.6%
HumanEval80.5%82.6%
IFEval87.5%63%
MMLU83.6%84.8%
MMLU-Pro66.4%70.4%

FAQ

Is Llama 3.1 70B Instruct better than Phi-4?

Llama 3.1 70B Instruct scores 10.0 on the Respan Index (#159), ahead of Phi-4 at 9.0 (#160). Phi-4 leads on 6 of the 9 benchmarks both report.

Which is cheaper, Llama 3.1 70B Instruct or Phi-4?

Llama 3.1 70B Instruct lists at $0.4 input and $0.4 output per 1M tokens; Phi-4 at $0.07 and $0.14. Phi-4 is 4.6x cheaper per token at list price.

Which has the larger context window?

Llama 3.1 70B Instruct accepts 128K tokens and Phi-4 16K tokens.

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