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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.

SpecificationInkling SmallThinking MachinesClaude Opus 5Anthropic
ReleasedJul 30, 2026Jul 24, 2026
Context window524K1M
Max output262K128K
Input / 1M$0.45$5
Output / 1M$1.2$25
Cost per task$0.12$2.25
Arena Elo—1,393
Serving providers25
Parameters266BUndisclosed
Licenceapache-2.0Proprietary
Capabilities
  • Reasoning
  • Tool use
  • Vision
  • Audio in
  • 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

  • Inkling Small
  • Claude Opus 5

  • Intelligence Index

    Inkling Small
    41.2
    Claude Opus 5
    63.1

  • Coding Index

    Inkling Small
    52.9
    Claude Opus 5
    78.0

  • Agentic Index

    Inkling Small
    31.9
    Claude Opus 5
    59.2

  • Output speed

    Inkling Small
    49 t/s
    Claude Opus 5
    87 t/s

  • Context window

    Inkling Small
    524K
    Claude Opus 5
    1M

  • Latency · lower is better

    Inkling Small
    570ms
    Claude Opus 5
    1.12s

  • Blended price / 1M · lower is better

    Inkling Small
    $0.637
    Claude Opus 5
    $10

  • Cost per task · lower is better

    Inkling Small
    $0.12
    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
MetricInkling SmallClaude Opus 5
Intelligence Index41.263.1
Coding Index52.978.0
Agentic Index31.959.2
Output speed49 t/s87 t/s
Context window524K1M
Latency · lower is better570ms1.12s
Blended price / 1M · lower is better$0.637$10
Cost per task · lower is better$0.12$2.25

Evaluation scores

Percentage correct on a common 0–100% scale

  • Inkling Small
  • Claude Opus 5

  • GPQA Diamond

    Inkling Small
    89.5%
    Claude Opus 5
    93.2%

  • Humanity's Last Exam

    Inkling Small
    33.3%
    Claude Opus 5
    54.9%

  • SciCode

    Inkling Small
    48.7%
    Claude Opus 5
    55.7%

  • τ²-bench

    Inkling Small
    18.8%
    Claude Opus 5
    42.1%

  • AA-LCR long context

    Inkling Small
    69.3%
    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
EvaluationInkling SmallClaude Opus 5
GPQA Diamond89.5%93.2%
Humanity's Last Exam33.3%54.9%
SciCode48.7%55.7%
τ²-bench18.8%42.1%
Terminal-Bench Hard——
LiveCodeBench——
AA-LCR long context69.3%75.7%
AIME 2025——

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