SimpleFunctions
Winner-take-all answer·4 source contracts·Kalshi 4·refreshed just now·Closes Apr 1, 2027 · 280d

Will Output Token Price of OpenAI GPT 5.5 be at or below $20/MTok in 2026

Leader sits at 41% across 4 bound outcomes, runner-up at 32%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.

Leader probability

41%

$25/MTok or below

runner-up 32¢leader 41¢

Outcomes

4

winner-take-all

Runner-up

32¢

$20/MTok or below

Spread

9pp

contested

24h volume

$1K

modest

Closes

Apr 1, 2027

280 days

Venue

Kalshi

4 bound

30-day trend

0%50%100%-30d-3w-2w-1wtoday$25/MTok or below: 37% (16 days, 16 points)$25/MTok or below: 37% on 2026-06-24$20/MTok or below: 29% (16 days, 13 points)$20/MTok or below: 29% on 2026-06-20$15/MTok or below: 15% (16 days, 11 points)$15/MTok or below: 15% on 2026-06-20
$25/MTok or below37¢$20/MTok or below29¢$15/MTok or below15¢
Top 3 candidates by current price · 16d

Bracket family

How the bracket ladder is priced.

Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.

Analysis

This probability reflects market expectations that OpenAI's GPT 5.5 output tokens will cost $20 or less per million tokens by end-2026. The 19% price reflects skepticism that pricing will reach this threshold, with markets assigning higher probability (38%) to staying below $25/MTok. Pricing depends on model efficiency gains, competitive pressure, and OpenAI's pricing strategy post-release. The contract resolves upon GPT 5.5's official launch and published pricing; if the model releases before year-end 2026, actual pricing terms will determine the outcome. If launch delays beyond 2026, the contract expires unresolved. Near-term resolution depends on OpenAI's announcement timing and whether pricing undercuts current GPT-4 rates substantially enough to hit the $20 threshold.

  • GPT 5.5 must launch before December 31, 2026 with publicly available output token pricing to enable contract resolution
  • Current output token pricing for GPT-4 Turbo is approximately $0.03/1K tokens ($30/MTok), so $20/MTok requires a 33% price reduction or efficiency improvement
  • Competitive pricing from Claude 3 and other models, along with volume-based discounting trends, influences whether OpenAI targets aggressive pricing at or below $20/MTok
  • Model inference efficiency and computational cost improvements directly correlate to published output token pricing
  • No official launch date or pricing announcement for GPT 5.5 has been confirmed as of June 2026, creating uncertainty about resolution timing

Recently closed in ai tech

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

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