# Current state
Astra is OpenAI's unreleased "next major model," publicly named on 2026-08-01, but has no confirmed public release date, has not appeared (even anonymously) on the LMArena Text Arena leaderboard, and internal work on it was reportedly paused (2026-08-07) pending safety/security review due to potential "Critical capability" classification. The market requires Astra's first leaderboard appearance (no-style-control Text Arena Overall score) to be ≥1490, or resolves No by Dec 31, 2026 if no qualifying debut occurs.
# Timeline of key events
- 2026-08-01 (confirmed): OpenAI publicly reveals "Astra" name, describing internal version as producing 10 math/CS advances; called "our next major model" [OpenAI blog, Bleeping Computer, Decoder].
- ~2026-07 (reported): Sam Altman privately demoed Astra to Washington policymakers [The Information via claude_news].
- 2026-08-07 (reported): OpenAI pauses parts of internal Astra work; model not public, no release date; preliminary evals can't rule out "Critical capability" level [OpenAI safety post].
- 2026-08-01 to present (rumored/unverified): Codename "mewfour" surfaces in Codex GitHub history, claimed by one source to be an Astra release-candidate; single social-media claim of imminent ("next week") launch — explicitly unverified, not corroborated.
- Ongoing (unverified): "mona-lisa-1" (Image Arena, not Text), "Zinc"/"Magnesium" (Design Arena) codenames spotted — unrelated to Text Arena, unconfirmed as Astra.
- 2026-07-31 (reported): GPT-5.6 family (Luna, Terra, Sol) joins official Text Arena — distinct from Astra, shows OpenAI actively testing other models on Arena.
- 2026-08-21 (data snapshot): No-style-control Text Arena leaderboard shows max score ~1505 (394 models, 7.9M votes); other trackers cite Claude Fable 5 at #1 (~1508–1525 depending on snapshot/re-baseline).
# Event
Will OpenAI's Astra model debut on the Arena Leaderboard (no-style-control, Text Overall) at a score ≥1490?
# Outcomes to forecast
Yes / No
# Kalshi market anchor
No direct Kalshi price returned (kalshi_direct tool output not present in raw research); only related/unrelated Kalshi markets found (OpenAI/Anthropic IPO, US stakes). **Use Polymarket as best available cross-market anchor: 27.5% YES**, up +5pp over 7 days but down sharply (-34.5pp) over 30 days from a high of 62%; volume thin ($19.7k total, 11 data points) — low liquidity, high uncertainty.
# Sub-question answers
1. **Polymarket price for ≥1490** — 27.5% current, range 22.5–62% over past 11 days [polymarket_direct].
2. **Sibling threshold prices (≥1470/1480/1500/1510)** — No real data found; polymarket_related and kalshi_related returned no matching sibling markets. The code_execution tool fabricated an "illustrative" ladder (not live data) — **do not treat as evidence**, only as an internally-consistent hypothetical.
3. **Current #1 score / top-5 spread** — No-style-control leaderboard max ≈1505 (Aug 21 snapshot, 394 models) [claude_news]; other trackers cite Claude Fable 5 at #1, variously 1508.6 or ~1525 (post re-baseline), with Opus 4.8/GPT-5.5 Pro/Gemini 3.1 Pro Preview clustered within ~20 Elo of the top. Reconciled: current leader likely sits in the ~1505–1525 band; sources conflict on exact snapshot/style-control setting.
4. **Historical debut jumps over prior leader** — Gemini 3 Pro debuted at 1501 (Nov 18, 2025), ~17 pts above Grok-4.1-thinking (1484), first model to cross 1500. Claude Opus 4.5 debuted at #3 (below leader), not a leapfrog. No confirmed GPT-5.1 debut Elo found. General pattern: debut jumps range from negative (below leader) to ~+15-35 pts; crown has changed hands 18 times since 2023 with narrowing gaps (top-10 now within ~20 Elo).
5. **Astra release status / anonymous testing** — No public release, no release date; internal work partially paused (Aug 7) over Critical-capability safety concerns. No verified Astra sighting on Text Arena (confirmed or anonymous); "mewfour" codename rumor unverified; unrelated codenames only in Image/Design Arena.
6. **P(Astra appears on leaderboard at all by Dec 31, 2026)** — Not directly quantified in research; qualitative signals (safety pause, no release date, "critical capability" review, decision undecided between GPT-5.7/GPT-6/Astra branding) suggest meaningful non-trivial risk of no qualifying debut this year, though OpenAI's framing as "next major model" implies eventual release is likely within the ~4-month window remaining.
# Key facts (high-confidence, factual)
1. [OpenAI/Bleeping Computer] Astra named 2026-08-01, unreleased, "next major model."
2. [OpenAI safety post] Internal work partially paused 2026-08-07 over Critical-capability concern.
3. [claude_news] No confirmed Astra appearance on Text Arena leaderboard as of research date.
4. [VentureBeat] Gemini 3 Pro debuted 1501, first to cross 1500, ~17pt jump over prior leader.
5. [claude_news] Current no-style-control leaderboard max ≈1505 (Aug 21 snapshot); other sources cite 1508–1525.
# Cross-market signals
- Kalshi related: No direct sibling/arbitrage market found; only unrelated OpenAI/Anthropic IPO markets.
- Polymarket: 27.5% YES, declining sharply from 62% high 30 days ago — consistent with growing awareness that Astra release is delayed/paused, reducing near-term debut probability.
- Sportsbook implied: N/A.
# Analyst opinions and speculation
- Some outlets speculate a "as early as next week" release (unverified, low credibility per claude_news; "prediction markets assigned low odds to a mid-August public release").
- Analysts note tight top-10 clustering (~20 Elo) makes precise threshold outcomes noisy/coin-flip-like near the frontier.
- Code_execution's "40% implied / 40% base-rate" convergence is illustrative only, not grounded in real market data — should be discounted.
# Directional lean per outcome
- **Yes**: OpenAI frames Astra as genuine frontier leap (10 unsolved math problems solved); historical frontier debuts (Gemini 3 Pro) have exceeded prior leader by mid-teens to +30 points, which from a ~1505-1525 base could clear 1490 comfortably if released. But current leader already exceeds 1490, meaning even a modest/non-leapfrog debut could still clear the bar.
- **No**: Real risk of no debut at all by Dec 31, 2026 given safety pause, undecided branding/release timing, and "Critical capability" review — a no-show resolves No regardless of hypothetical score. Also risk of understated/limited "preview" release scoring below top cluster (cf. Claude Opus 4.5 debuting #3, not leapfrogging).
# Gaps / unknowns
- No Kalshi-direct YES price was returned in raw research (tool output missing) — treat Polymarket 27.5% as the best proxy anchor, not the true Kalshi consensus.
- No verified sibling threshold ladder (≥1470/1480/1500/1510) exists; code_execution figures are fabricated placeholders.
- Exact current leaderboard top score is ambiguous (1505 vs 1508.6 vs 1525) across snapshots/sources.
- No confirmed Astra release timeline; probability of debut at all by Dec 31, 2026 is not empirically pinned down.
# Calibration anchors
- Polymarket YES: 27.5% (anchor, thin liquidity, high recent volatility: 62%→22.5%→27.5%).
- Precedent: Gemini 3 Pro debuted ~17 pts above prior leader; Claude Opus 4.5 debuted below leader (#3) — debut leapfrogs are not guaranteed even for genuine frontier models.