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Compare two AI models

Pick two models and see what each costs, how well it works and what it's actually for. The scores are my own judgment on a 1–5 scale from using these — not vendor claims and not benchmark results. Your picks stay in the address bar, so you can send the comparison to someone else.

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Open models you can run yourself

GLM-5.3

Z.ai

Visit

Free value

5/5

Performance

4/5

Range of uses

3/5

Strong open release, but the published figures are the maker's own.

Published benchmark scores
  • Artificial Analysis Intelligence Index v4.3.245

    combined score across ten reasoning and knowledge tests · tested: GLM-5.3

    Artificial Analysis · 28 September 2026 · independent

    Measured at 88.8 tokens per second output speed.

  • Vals AI Legal Research49.04% — 5th

    real legal research tasks answered correctly · tested: GLM-5.3

    Vals AI · 19 August 2026 · independent

Figures are for GLM-5.3, the current version on Artificial Analysis. The old mix of GLM-5 and GLM-4.6 numbers has been removed so every score here belongs to the same release.

Figures copied from the sources above, checked 17 September 2026.

Cost
Open weights; API $1.40 in / $4.40 out per million tokens, coding plans from $18/month.
Performance
One of the stronger open releases, particularly on reasoning and code, per the maker's own write-up.
Use it for
  • Keeping track of what open models can now do
Keep in mind
The figures in the post are the maker's own. Cross-check against an independent benchmark.