Compare/Llama 2 Chat 7B vs DeepSeek V4 Flash (Reasoning, High Effort)

Llama 2 Chat 7BvsDeepSeek V4 Flash (Reasoning, High Effort)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

Meta

Llama 2 Chat 7B

Input
$0.05/M
Output
$0.25/M
Speed
99 tok/s
TTFT
15.63s
DeepSeek

DeepSeek V4 Flash (Reasoning, High Effort)

Input
$0.14/M
Output
$0.28/M
Speed
TTFT

Winner by Category

Cheaper
Llama 2 Chat 7B
Faster (tok/s)
Llama 2 Chat 7B
Lower Latency
DeepSeek V4 Flash (Reasoning, High Effort)
Benchmarks (3-6)
DeepSeek V4 Flash (Reasoning, High Effort)

Pricing Comparison

MetricLlama 2 Chat 7BDeepSeek V4 Flash (Reasoning, High Effort)
Input ($/M tokens)$0.05$0.14
Output ($/M tokens)$0.25$0.28
Cost for 1M input + 100K output tokens:
Llama 2 Chat 7B$0.08
DeepSeek V4 Flash (Reasoning, High Effort)$0.17

Speed Comparison

Output Speed (tokens/s) — higher is better
Llama 2 Chat 7B
99 tok/s
DeepSeek V4 Flash (Reasoning, High Effort)
Time to First Token (seconds) — lower is better
Llama 2 Chat 7B
15.63s
DeepSeek V4 Flash (Reasoning, High Effort)

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
4.337.4
Coding Index
Math Index
GPQA Diamond
22.7%86.7%
MMLU-Pro
16.4%
LiveCodeBench
0.2%
AIME 2025
MATH-500
5.9%
Humanity's Last Exam
5.8%27.8%
SciCode
0.0%42.0%
IFBench
73.5%
TerminalBench
38.6%
Llama 2 Chat 7B3 wins
6 winsDeepSeek V4 Flash (Reasoning, High Effort)

Frequently Asked Questions

Which is cheaper, Llama 2 Chat 7B or DeepSeek V4 Flash (Reasoning, High Effort)?

Llama 2 Chat 7B is cheaper overall. Its blended price (3:1 input/output ratio) is $0.10/M tokens vs $0.17/M for DeepSeek V4 Flash (Reasoning, High Effort).

Which model performs better on benchmarks?

DeepSeek V4 Flash (Reasoning, High Effort) wins 6 out of 12 benchmarks compared to 3 for Llama 2 Chat 7B. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Llama 2 Chat 7B generates tokens faster at 99 tok/s vs 0 tok/s. However, DeepSeek V4 Flash (Reasoning, High Effort) has lower time-to-first-token (0.00s vs 15.63s).

When should I use Llama 2 Chat 7B vs DeepSeek V4 Flash (Reasoning, High Effort)?

Choose based on your priorities: Llama 2 Chat 7B for lower cost, DeepSeek V4 Flash (Reasoning, High Effort) for stronger benchmark performance, and Llama 2 Chat 7B for faster generation. For latency-sensitive apps, check the TTFT comparison above.