Compare/Nemotron 3 Super 120B A12B (Reasoning) vs Reka Flash (Sep '24)

Nemotron 3 Super 120B A12B (Reasoning)vsReka Flash (Sep '24)

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

NVIDIA

Nemotron 3 Super 120B A12B (Reasoning)

Input
$0.2/M
Output
$0.8/M
Speed
144 tok/s
TTFT
1.82s
Reka AI

Reka Flash (Sep '24)

Input
$0.2/M
Output
$0.8/M
Speed
56 tok/s
TTFT
2.28s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Nemotron 3 Super 120B A12B (Reasoning)
Lower Latency
Nemotron 3 Super 120B A12B (Reasoning)
Benchmarks (2-0)
Nemotron 3 Super 120B A12B (Reasoning)

Pricing Comparison

MetricNemotron 3 Super 120B A12B (Reasoning)Reka Flash (Sep '24)
Input ($/M tokens)$0.2$0.2
Output ($/M tokens)$0.8$0.8
Cost for 1M input + 100K output tokens:
Nemotron 3 Super 120B A12B (Reasoning)$0.28
Reka Flash (Sep '24)$0.28

Speed Comparison

Output Speed (tokens/s) — higher is better
Nemotron 3 Super 120B A12B (Reasoning)
144 tok/s
Reka Flash (Sep '24)
56 tok/s
Time to First Token (seconds) — lower is better
Nemotron 3 Super 120B A12B (Reasoning)
1.82s
Reka Flash (Sep '24)
2.28s

Editorial Analysis

Verdict. Nemotron 3 Super 120B A12B (Reasoning) 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, Reka Flash (Sep '24) is meaningfully cheaper if your traffic is output-heavy (long completions, document generation, agent loops). Reka Flash (Sep '24) makes more sense when output volume is low and absolute reasoning quality justifies the premium.

Strengths. Nemotron 3 Super 120B A12B (Reasoning) is strongest on Coding Index (37.7), Intelligence Index (25.7). Reka Flash (Sep '24) leads on Intelligence Index (6.0).

Speed. On throughput, Nemotron 3 Super 120B A12B (Reasoning) generates tokens at 144 tok/s versus 56 tok/s — about 61% faster. On time-to-first-token, Nemotron 3 Super 120B A12B (Reasoning) responds in 1820ms vs 2280ms, which matters most for chat-style UIs.

Provider. NVIDIA and Reka AI sell to overlapping but distinct developer audiences: NVIDIA tends to ship frontier reasoning models with premium positioning, while Reka AI 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): Nemotron 3 Super 120B A12B (Reasoning) costs $18.00 ($216/year); Reka Flash (Sep '24) costs $18.00 ($216/year). At a smaller 5M-input/2M-output scale (single-developer tool or prototype): Nemotron 3 Super 120B A12B (Reasoning) ≈ $2.60/run, Reka Flash (Sep '24) ≈ $2.60/run. At agent/realtime scale (200M input / 100M output per million requests): Nemotron 3 Super 120B A12B (Reasoning) ≈ $120/run, Reka Flash (Sep '24) ≈ $120/run.

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.

Head-to-head deltas

  • On throughput, Nemotron 3 Super 120B A12B (Reasoning) is 2.58× faster (144 tok/s vs 56 tok/s). For streaming chat or real-time agents this alone often flips the recommendation.

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
25.76.0
Coding Index
37.7
Math Index
GPQA Diamond
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
SciCode
IFBench
TerminalBench
Nemotron 3 Super 120B A12B (Reasoning)2 wins
0 winsReka Flash (Sep '24)

Frequently Asked Questions

Which is cheaper, Nemotron 3 Super 120B A12B (Reasoning) or Reka Flash (Sep '24)?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

Nemotron 3 Super 120B A12B (Reasoning) wins 2 out of 12 benchmarks compared to 0 for Reka Flash (Sep '24). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Nemotron 3 Super 120B A12B (Reasoning) generates tokens faster at 144 tok/s vs 56 tok/s. Nemotron 3 Super 120B A12B (Reasoning) also has lower time-to-first-token (1.82s vs 2.28s).

When should I use Nemotron 3 Super 120B A12B (Reasoning) vs Reka Flash (Sep '24)?

Choose based on your priorities: both are similarly priced, Nemotron 3 Super 120B A12B (Reasoning) for stronger benchmark performance, and Nemotron 3 Super 120B A12B (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.