openai (gpt-5-nano-2025-08-07) · insufficient evidence · 60%

There is no verified mission or credible public plan confirming a crewed Mars landing in 2026 as of 2026-02-10; evidence does not establish the claim's truth.

Key points: No officially confirmed Mars crewed landing on or before 2026-12. | Major space agencies (NASA, etc.) target Mars for crewed missions in the 2030s; no firm 2026 date announced. | Private statements (e.g., SpaceX/Starship) about 2026 are not independently verified and remain speculative. | The claim refers to a future event; current information is insufficient to verify or falsify it.

anthropic (claude-haiku-4-5-20251001) · contradicted · 95%

As of February 2026, no crewed mission has landed humans on Mars. Multiple space agencies have announced Mars landing plans for dates beyond 2026, making this claim factually inaccurate.

Key points: NASA's Artemis program is focused on lunar missions through the mid-2020s, with Mars crewed missions targeted for the 2030s-2040s | SpaceX's Starship program has not achieved crewed Mars landings as of early 2026 | No space agency has successfully landed humans on Mars as of the claim evaluation date (February 2026) | International space agencies consistently project crewed Mars missions for the 2030s or later

google (gemini-2.5-flash-lite) · insufficient evidence · 30%

There are ongoing discussions and plans for crewed missions to Mars, but no confirmed landing date has been established for 2026. Multiple space agencies and private companies have expressed intentions to send humans to Mars, with timelines varying significantly. As of the current date, a 2026 landing is not officially scheduled or guaranteed.

Key points: No official crewed mission to Mars is scheduled to land in 2026. | Several entities, including NASA and SpaceX, have long-term goals for Mars missions, but specific landing dates are subject to change and significant technological development. | Timelines for human missions to Mars are complex and dependent on numerous factors such as funding, technological readiness, and orbital mechanics.

Limitations: The claim is about a future event, making definitive verification impossible until the event occurs or is definitively scheduled/canceled. | Information regarding specific mission timelines can change rapidly due to technological, financial, or political reasons.