Compare/Apertus 70B Instruct vs Gemini 3 Flash Preview (Reasoning)

Apertus 70B InstructvsGemini 3 Flash Preview (Reasoning)

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

Swiss AI Initiative

Apertus 70B Instruct

Input
$0.82/M
Output
$2.92/M
Speed
64 tok/s
TTFT
1.68s
Google

Gemini 3 Flash Preview (Reasoning)

Input
$0.5/M
Output
$3/M
Speed
180 tok/s
TTFT
6.33s

Winner by Category

Cheaper
Gemini 3 Flash Preview (Reasoning)
Faster (tok/s)
Gemini 3 Flash Preview (Reasoning)
Lower Latency
Apertus 70B Instruct
Benchmarks (0-11)
Gemini 3 Flash Preview (Reasoning)

Pricing Comparison

MetricApertus 70B InstructGemini 3 Flash Preview (Reasoning)
Input ($/M tokens)$0.82$0.5
Output ($/M tokens)$2.92$3
Cost for 1M input + 100K output tokens:
Apertus 70B Instruct$1.11
Gemini 3 Flash Preview (Reasoning)$0.80

Speed Comparison

Output Speed (tokens/s) — higher is better
Apertus 70B Instruct
64 tok/s
Gemini 3 Flash Preview (Reasoning)
180 tok/s
Time to First Token (seconds) — lower is better
Apertus 70B Instruct
1.68s
Gemini 3 Flash Preview (Reasoning)
6.33s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
7.746.4
Coding Index
1.942.6
Math Index
97.0
GPQA Diamond
27.2%89.8%
MMLU-Pro
89.0%
LiveCodeBench
90.8%
AIME 2025
97.0%
MATH-500
Humanity's Last Exam
5.5%34.7%
SciCode
5.7%50.6%
IFBench
25.9%78.0%
TerminalBench
0.0%38.6%
Apertus 70B Instruct0 wins
11 winsGemini 3 Flash Preview (Reasoning)

Frequently Asked Questions

Which is cheaper, Apertus 70B Instruct or Gemini 3 Flash Preview (Reasoning)?

Gemini 3 Flash Preview (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.13/M tokens vs $1.34/M for Apertus 70B Instruct.

Which model performs better on benchmarks?

Gemini 3 Flash Preview (Reasoning) wins 11 out of 12 benchmarks compared to 0 for Apertus 70B Instruct. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Gemini 3 Flash Preview (Reasoning) generates tokens faster at 180 tok/s vs 64 tok/s. Apertus 70B Instruct also has lower time-to-first-token (1.68s vs 6.33s).

When should I use Apertus 70B Instruct vs Gemini 3 Flash Preview (Reasoning)?

Choose based on your priorities: Gemini 3 Flash Preview (Reasoning) for lower cost, Gemini 3 Flash Preview (Reasoning) for stronger benchmark performance, and Gemini 3 Flash Preview (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.