Undominated.ai

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The value frontier on 2026-09-11

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As of 2026-09-11 2026-09-11

10 10 undominated

models 338
providers 5
rated, priced 134
undominated 10
strictly beaten 93%
124 of 134 rated, priced models have another that scores at least as high, costs no more, and wins on one of the two. The short chartreuse length is the undominated set.
$0.100$0.300$1.00$3.00$10.00$30.0010801170126013501440Claude Fable 5.1 · 1513.7 · $20.00/MClaude Opus 5 · 1505.0 · $10.00/MGemini 3.8 Flash · 1495.2 · $1.50/MGLM 5.3 Flash · 1470.8 · $0.238/MGemma 4 31B · 1441.8 · $0.153/MHy3 · 1439.9 · $0.144/MGemma 4 26B A4B · 1434.9 · $0.087/Mgpt-oss-120b · 1365.9 · $0.070/MGemma 3 4B · 1290.6 · $0.063/Mgpt-oss-20b · 1287.2 · $0.055/MLMArenaeffective $/M — log
A staircase, not a curve. Between two rungs there is no model, so a smooth line would invent options that do not exist. Chartreuse marks the undominated set. Each graphite dot has a model that scores at least as high, costs no more, and wins on one of the two. Logos name the vendor; they are not a ranking colour.

The rungs, best first

  1. 1 Claude Fable 5.1 Anthropic
    LMArena 1513.7
    $/M $20.00/M

    Check

  2. 2 Claude Opus 5 Anthropic
    LMArena 1505.0
    $/M $10.00/M

    Check

  3. 3 Gemini 3.8 Flash Google
    LMArena 1495.2
    $/M $1.50/M

    Check

  4. 4 GLM 5.3 Flash Z.ai
    LMArena 1470.8
    $/M $0.238/M

    Check

  5. 5 Gemma 4 31B Google
    LMArena 1441.8
    $/M $0.153/M

    Check

  6. 6 Hy3 Tencent
    LMArena 1439.9
    $/M $0.144/M

    Check

  7. 7 Gemma 4 26B A4B Google
    LMArena 1434.9
    $/M $0.087/M

    Check

  8. 8 gpt-oss-120b OpenAI
    LMArena 1365.9
    $/M $0.070/M

    Check

  9. 9 Gemma 3 4B Google
    LMArena 1290.6
    $/M $0.063/M

    Check

  10. 10 gpt-oss-20b OpenAI
    LMArena 1287.2
    $/M $0.055/M

    Check

Who is on it

  • Google 4 of 10
  • Anthropic 2 of 10
  • OpenAI 2 of 10
  • Tencent 1 of 10
  • Z.ai 1 of 10

Stamps we have

The dated archive starts with the first snapshot. There is no invented history.

  1. 2026-08-24 10 undominated
  2. 2026-08-25 10 undominated
  3. 2026-08-26 9 undominated
  4. 2026-08-28 9 undominated
  5. 2026-08-29 9 undominated
  6. 2026-08-30 9 undominated
  7. 2026-09-02 9 undominated
  8. 2026-09-03 10 undominated
  9. 2026-09-04 10 undominated
  10. 2026-09-08 10 undominated
  11. 2026-09-11 10 undominated
  12. 2026-09-15 11 undominated
  13. 2026-09-22 12 undominated
  14. 2026-09-23 13 undominated
  15. 2026-09-29 12 undominated
  16. 2026-09-30 12 undominated
  17. 2026-10-06 12 undominated

Cite

APA 
Undominated.ai. (2026-09-11). The value frontier. https://undominated.ai/now/2026-09-11/
BibTeX 
@misc{undominated-now-2026-09-11,
  author = {{Undominated.ai}},
  title  = {The value frontier},
  year   = {2026},
  url    = {https://undominated.ai/now/2026-09-11/},
  note   = {2026-09-11}
}

LMArena scores used under CC BY 4.0

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