Next Claude Sonnet released by...?
💡 What the odds say
Most likely: June 30 at about a 100% chance — almost certain.
The field is effectively a binary race between two specific dates, June 30 and July 31, both at 100% probability, meaning the market sees the next Claude Sonnet as already released or imminent, with the only uncertainty being the exact date; the biggest recent shift was the launch of Claude Opus 5 on July 24 (Anthropic, Jul 24), which likely reset expectations for Sonnet's release timing.
📊 Base rate: In Anthropic's prior model releases, the gap between a major model (like Opus) and the next Sonnet has typically been 3–6 months, making a release within days of Opus 5 unusually tight.
What's driving it
- • Claude Opus 5 was introduced on July 24 (Anthropic, Jul 24), which may have pushed the Sonnet 5 release to a later date or confirmed it as already out.
- • Claude Sonnet 5 was benchmarked and priced on July 9 (tech-insider.org, Jul 9), showing a 57 score and half the API cost, indicating it was already available for testing.
- • Negative user reports on July 6 (Neowin, Jul 6) about Sonnet 5's behavior suggest it was in public hands, supporting a June 30 release date.
- • SWE-bench scores and Elo ratings from July 7 (tech-insider.org, Jul 7) further confirm Sonnet 5's existence and performance metrics.
Why the front-runners lead
- • June 30 leads because multiple independent benchmarks and pricing data from early July (tech-insider.org, Jul 7–9) confirm Claude Sonnet 5 was already being tested and used, implying a late June release.
- • July 31 leads because Anthropic's official introduction of Opus 5 on July 24 (Anthropic, Jul 24) suggests Sonnet 5 may be scheduled for a later, coordinated launch to avoid cannibalizing Opus sales.
- • Both dates are at 100% because the market treats the release as a binary event already happened or imminent, with no other candidates viable.
Why it's still open
- • The field is closed to only two dates, so any overtake would require a new candidate like a later date (e.g., August) if Sonnet 5 is delayed further, but no headlines suggest that.
- • If negative user feedback (Neowin, Jul 6) leads Anthropic to pull or delay Sonnet 5 for fixes, the July 31 date could collapse, but no recall or delay has been announced.
- • A surprise release of a different model (e.g., Claude Haiku 5) could shift attention, but the market is narrowly focused on Sonnet.
What to watch
- • Anthropic's official release notes or blog post confirming the Sonnet 5 launch date would resolve the binary split; likely direction: one date consolidates to 100% and the other drops to 0%.
- • Any news of a recall or major bug fix for Sonnet 5 (e.g., from the Neowin report) would push the July 31 date lower and open the field to later dates.
- • A third-party benchmark or pricing update showing Sonnet 5's availability on a specific date (e.g., June 30) would confirm that date as correct.
AI-generated · grounded in recent news + odds · informational only, not advice. Verify on the source platform.
Data from InsightX’s public API, for informational purposes only. PredictPal is not affiliated with any platform and does not facilitate trading.
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How it resolves
Settled by the source platform according to the rules written into this specific market.
ⓘ A market settles under its own written rules, which can lag what looks decided in the news — so the price may not move to 100% the moment an outcome seems obvious.
View the official rules on InsightX ↗Related markets
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