Day 7 · 2026-10-30
15 launches checked60 claims quoted word for word87 user reports linked10 verified fixes linked6 corrections publishedLive 7 days5 of 5 founding sponsor spots left
Day 7Launch day vs. day 7
AI launches, checked against real usersLast re-stamped 30 Oct 2026

AI models / Compare

GPT-6.1 Sol vs Muse Spark Open: which delivered after 7 days?

GPT-6.1 Sol is stamped Partly; Muse Spark Open is still Too early to call, so this comparison isn't settled yet.

GPT-6.1 SolMuse Spark Open
VerdictPartlyToo early
Claims held00
Claims mixed31
Claims failed00
Claims unclear23
User reports56
Launched29 Sept 202615 Oct 2026
Last stamped22 Oct 202625 Oct 2026

No. 004 · OpenAI

GPT-6.1 Sol

PartlyDay 7 verdict

It arrived and Ultrafast followed, but 'available today' took app updates for many users, Ultrafast is limited to top plans, and some users report over-refusals.

Launched
29 Sept 2026
Stamped
22 Oct 2026
Claims
✓0 held · ~3 mixed · ✗0 failed · ?2 unclear
Reports
5 (0 praise · 3 problem · 2 mixed)

What they claimed

“GPT-6.1 Sol is available starting today to all Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex.”
~ Mixed
“In the coming days, we’ll also offer GPT-6.1 Sol Ultrafast, with up to 8x faster token generation compared to its standard speed in Codex.”
~ Mixed
“GPT-6.1 Sol is more transparent about its limitations and more reliable at respecting user intent and safety constraints.”
~ Mixed
“We’re introducing GPT-6.1 Sol, an upgrade to GPT-6 Sol that nearly matches GPT-6 Astra’s intelligence on agentic coding, computer use, and professional work at one-fifth of Astra’s standard input and output token prices.”
? Unclear
“Its standard API prices are $2 per million input tokens, $0.10 per million cached input tokens, and $10 per million output tokens.”
? Unclear

Full receipt

No. 007 · Meta

Muse Spark Open

Too earlyDay 7 verdict

Ten days in, nobody independent has run the two-Mac-Studio setup, and Apple still lists the 512GB M5 Ultra as coming in late October.

Launched
15 Oct 2026
Stamped
25 Oct 2026
Claims
✓0 held · ~1 mixed · ✗0 failed · ?3 unclear
Reports
6 (2 praise · 3 problem · 1 mixed)

What they claimed

“Muse Spark Open is the first model in its class to run on your desktop using two Apple M5 Ultra Mac Studios with the latest MLX framework.”
~ Mixed
“Muse Spark Open is available today through API platforms at Baseten, Fireworks AI, Groq, Modal, Nebius, OpenRouter and Together AI.”
? Unclear
“We’re releasing the weights under the Muse Model License with limited commercial terms, which allow many developers to use the model for free.”
? Unclear
“Muse Spark Open is a natively multimodal model with 816B total parameters (42B active) and a 1M-token context window.”
? Unclear

Full receipt

Both stamps come from the public user reports linked on each receipt, under the same method. Verdicts are opinion and are never paid for.

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