Compare/LongCat 2.0 vs Apertus 70B Instruct

LongCat 2.0vsApertus 70B Instruct

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

LongCat

LongCat 2.0

Input
$0.75/M
Output
$2.95/M
Speed
45 tok/s
TTFT
2.91s
Swiss AI Initiative

Apertus 70B Instruct

Input
$0.82/M
Output
$2.92/M
Speed
TTFT

Winner by Category

Cheaper
LongCat 2.0
Faster (tok/s)
LongCat 2.0
Lower Latency
LongCat 2.0
Benchmarks (2-0)
LongCat 2.0

Pricing Comparison

MetricLongCat 2.0Apertus 70B Instruct
Input ($/M tokens)$0.75$0.82
Output ($/M tokens)$2.95$2.92
Cost for 1M input + 100K output tokens:
LongCat 2.0$1.04
Apertus 70B Instruct$1.11

Speed Comparison

Output Speed (tokens/s) — higher is better
LongCat 2.0
45 tok/s
Apertus 70B Instruct
Time to First Token (seconds) — lower is better
LongCat 2.0
2.91s
Apertus 70B Instruct

Editorial Analysis

Verdict. LongCat 2.0 wins the overall benchmark matchup 2–0 across 2 overlapping categories, but raw benchmark score is only one input to the decision.

Pricing. Both models sit in the budget bracket for output-token pricing. At 1.0× the per-million-token cost, Apertus 70B Instruct is meaningfully cheaper if your traffic is output-heavy (long completions, document generation, agent loops). Apertus 70B Instruct makes more sense when output volume is low and absolute reasoning quality justifies the premium.

Strengths. LongCat 2.0 is strongest on Coding Index (45.3), Intelligence Index (34.0). Apertus 70B Instruct leads on Intelligence Index (2.0).

Speed. Speed data is incomplete for this pair; benchmark and price should decide.

Provider. LongCat and Swiss AI Initiative sell to overlapping but distinct developer audiences: LongCat tends to ship frontier reasoning models with premium positioning, while Swiss AI Initiative often prices more aggressively. Your existing vendor relationships, billing, and SLA preferences may matter as much as the raw numbers above.

Workload cost. Workload scenarios (per million requests at 30M input + 15M output tokens): LongCat 2.0 costs $66.75 ($801/year); Apertus 70B Instruct costs $68.40 ($821/year). At a smaller 5M-input/2M-output scale (single-developer tool or prototype): LongCat 2.0 ≈ $9.65/run, Apertus 70B Instruct ≈ $9.94/run. At agent/realtime scale (200M input / 100M output per million requests): LongCat 2.0 ≈ $445/run, Apertus 70B Instruct ≈ $456/run. LongCat 2.0 becomes more attractive at higher volume — the absolute per-token pricing difference compounds when you ship at scale.

Recommendation. Both models have legitimate use cases — the right answer depends on whether you are optimizing for benchmark ceiling, latency, or unit cost. Start with the cheaper / faster model, evaluate against your specific task, and only switch if the upgrade shows a meaningful lift.

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
34.02.0
Coding Index
45.3
Math Index
GPQA Diamond
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
SciCode
IFBench
TerminalBench
LongCat 2.02 wins
0 winsApertus 70B Instruct

Frequently Asked Questions

Which is cheaper, LongCat 2.0 or Apertus 70B Instruct?

LongCat 2.0 is cheaper overall. Its blended price (3:1 input/output ratio) is $1.30/M tokens vs $1.34/M for Apertus 70B Instruct.

Which model performs better on benchmarks?

LongCat 2.0 wins 2 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?

LongCat 2.0 generates tokens faster at 45 tok/s vs — tok/s. LongCat 2.0 also has lower time-to-first-token (2.91s vs —s).

When should I use LongCat 2.0 vs Apertus 70B Instruct?

Choose based on your priorities: LongCat 2.0 for lower cost, LongCat 2.0 for stronger benchmark performance, and LongCat 2.0 for faster generation. For latency-sensitive apps, check the TTFT comparison above.