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Four models, one page

Pick the models you are actually choosing between. Every row is scaled within itself, so a bar means something next to its neighbours and nothing across rows.

SpecificationNemotron Nano 9B V2 (free)NVIDIAClaude Opus 5Anthropic
ReleasedSep 5, 2025Jul 24, 2026
Context window128K1M
Max output—128K
Input / 1MFree$5
Output / 1MFree$25
Cost per taskFree$2.25
Arena Elo—1,393
Serving providers15
Parameters8.9BUndisclosed
LicenceotherProprietary
Capabilities
  • Reasoning
  • Tool use
  • Open weights
  • Reasoning
  • Tool use
  • Vision

Metrics side by side

Each row is scaled to the largest value in that row — bars compare within a row, never across rows

  • Nemotron Nano 9B V2 (free)
  • Claude Opus 5

  • Intelligence Index

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    63.1

  • Coding Index

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    78.0

  • Agentic Index

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    59.2

  • Output speed

    Nemotron Nano 9B V2 (free)
    32 t/s
    Claude Opus 5
    87 t/s

  • Context window

    Nemotron Nano 9B V2 (free)
    128K
    Claude Opus 5
    1M

  • Latency · lower is better

    Nemotron Nano 9B V2 (free)
    1.05s
    Claude Opus 5
    1.12s

  • Blended price / 1M · lower is better

    Nemotron Nano 9B V2 (free)
    Free
    Claude Opus 5
    $10

  • Cost per task · lower is better

    Nemotron Nano 9B V2 (free)
    Free
    Claude Opus 5
    $2.25

Rows marked “lower is better” still draw a longer bar for a larger number — read the value, not just the length. Arena Elo is in the specification table above instead: it has no meaningful zero, so a bar would flatten the gaps.

View as table
MetricNemotron Nano 9B V2 (free)Claude Opus 5
Intelligence Index—63.1
Coding Index—78.0
Agentic Index—59.2
Output speed32 t/s87 t/s
Context window128K1M
Latency · lower is better1.05s1.12s
Blended price / 1M · lower is betterFree$10
Cost per task · lower is betterFree$2.25

Evaluation scores

Percentage correct on a common 0–100% scale

  • Nemotron Nano 9B V2 (free)
  • Claude Opus 5

  • GPQA Diamond

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    93.2%

  • Humanity's Last Exam

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    54.9%

  • SciCode

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    55.7%

  • τ²-bench

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    42.1%

  • AA-LCR long context

    Nemotron Nano 9B V2 (free)not measured
    Claude Opus 5
    75.7%

A missing bar means that evaluation was not run for that model — it is not a zero.

View as table
EvaluationNemotron Nano 9B V2 (free)Claude Opus 5
GPQA Diamond—93.2%
Humanity's Last Exam—54.9%
SciCode—55.7%
τ²-bench—42.1%
Terminal-Bench Hard——
LiveCodeBench——
AA-LCR long context—75.7%
AIME 2025——

Estimated from list pricing: 50K input tokens plus 80K output tokens for reasoning models (25K for non-reasoning).