Benchmark Almanac

Short Form Bench

GPT-6.1 Sol $2,949 leads since October 2026
Not in model cards

Agents act as growth lead of a small brand for a simulated week. They post short videos, run the store and answer customers, sponsors and the founder.

Some simulated parties make mistakes in the brand's favor to test honesty. Scored by business value in US dollars. 9 models in the Fireworks index.

Made by
Naïve
Released
October 2026
Kind
Simulated companies
Level
Expert
Scored
Settled by events
Answers
Agent task
Tasks
Kept private
Strongest model tested
GPT-6 Astra #3 on the capability index
Last model added
September 2026
Scores refreshed
November 12th, 2026
10
Entries on its own leaderboard, 9 models we track

GPT-6.1 Sol leads with $2,949 among models released by September 2026

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Every run is in the next chart. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

The newest model with a score here came out in September 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. $2,949 GPT-6.1 Sol
  2. $2,803 GPT-6 Astra
  3. $2,578 Grok 4.7
  4. $2,410 GPT-5.6 Sol
  5. $2,394 GPT-6 Sol
  6. $2,389 Claude Opus 5.5
  7. $2,355 Claude Sonnet 5.5
  8. $2,107 GPT-6 Luna
  9. $1,940 Gemini 3.8 Flash
  10. $1,793 Do nothing (baseline)
  1. 1 GPT-6.1 Sol $2,949
  2. 2 GPT-6 Astra $2,803
  3. 3 Grok 4.7 $2,578
  4. 4 GPT-5.6 Sol $2,410
  5. 5 GPT-6 Sol $2,394
  6. 6 Claude Opus 5.5 $2,389
  7. 7 Claude Sonnet 5.5 $2,355
  8. 8 GPT-6 Luna $2,107
  9. 9 Gemini 3.8 Flash $1,940
  10. 10 Do nothing (baseline) $1,793

Source: Official Short Form Bench leaderboard

#EntryScoreSettingDateSource
1 GPT-6.1 Sol $2,949 Sep 2026 Official leaderboard
2 GPT-6 Astra $2,803 Sep 2026 Official leaderboard
3 Grok 4.7 $2,578 Sep 2026 Official leaderboard
4 GPT-5.6 Sol $2,410 Jul 2026 Official leaderboard
5 GPT-6 Sol $2,394 Sep 2026 Official leaderboard
6 Claude Opus 5.5 $2,389 Sep 2026 Official leaderboard
7 Claude Sonnet 5.5 $2,355 Sep 2026 Official leaderboard
8 GPT-6 Luna $2,107 Sep 2026 Official leaderboard
9 Gemini 3.8 Flash $1,940 Sep 2026 Official leaderboard
10 Do nothing (baseline) $1,793 Official leaderboard

The best score, $2,949, costs $0.69 for the full run

Runs on the cost frontier score higher than any run that's cheaper. The costs are the leaderboard's own estimates, so compare them only within this benchmark.

OpenAI Cost frontier One model at each effort level
$0 $1,000 $2,000 $3,000 $0.01 $0.10 $1.00 $10 $100 Cost of the full run, log scale GPT-6.1 Sol GPT-6 Luna $0 $1,000 $2,000 $3,000 $0.01 $0.10 $1.00 $10 $100 Cost of the full run, log scale GPT-6.1 Sol GPT-6 Luna

Source: Official Short Form Bench leaderboard

ModelEffortHarnessScoreCost of the full runOutput tokens
GPT-6.1 Sol $2,949 $0.69
GPT-6 Astra $2,803 $3.34
Grok 4.7 $2,578 $2.63
GPT-5.6 Sol $2,410 $0.93
GPT-6 Sol $2,394 $0.90
Claude Opus 5.5 $2,389 $10
Claude Sonnet 5.5 $2,355 $2.92
GPT-6 Luna $2,107 $0.07
Gemini 3.8 Flash $1,940 $1.02

Number one over time

Lab claims count from the day the card came out, independent runs from the model’s release.

OpenAI
Own leaderboard 1 leader
GPT-6.1 Sol $2,949

Source: Official Short Form Bench leaderboard

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard
$1,750 $2,000 $2,250 $2,500 $2,750 $3,000 $1,750 $2,000 $2,250 $2,500 $2,750 $3,000

Source: Official Short Form Bench leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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