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Stephen Reid · Jul 27, 2025

In Correspondence #50

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Stephen Reid · Stephen Reid

Dear friends,

Welcome to the latest In Correspondence. I’m writing from Gothenberg, where yesterday I completed the ÖTILLÖ Gothenburg Sprint swimrun (3.9km swim in 17 sections, 18.5km run in 18 sections) in 5h11m 🎉

On Wednesday I head to the UK for a week. In London on Tue 5th Aug? Come hang out at Technofeudalism, Network Nations and the Future of Dandelion

Scroll down for some tips for the LLM connoisseur.

  • The start of the Planet.Health residency at Emerge Lakefront, co-organised by brilliant friend Dr Rita Issa

  • A week catching up with friends in Devon

  • Another swimrun on Åland, 9 Aug

  • A Swedish B2 course at Folkuniversitet, 18-29 Aug

  • Spark Changemakers on Ekskäret, 9-13 Sep

  • Deep Joy: A Samadhi Retreat with Yahel Avigur and Sari Markkanen in Finland, 15-22 Sep

  • EQ-Bench Longform Creative Writing is one of the most meaningful AI benchmarks to me. Sonnet 3.7 ranks above Sonnet 4, with a slop score second only to Opus 4, which fits with the fact that Sonnet 3.7 (thinking) is still my favourite AI writing partner (adjusting for cost – I can’t justify the huge extra cost of Opus 4 for the marginal benefit).

  • The Chinese open-source labs have been absolutely cooking though, with Kimi K2, Qwen3 235B A22B Thinking 2507 and Qwen3 Coder looking incredibly strong.

  • To see what models have product-market fit, check OpenRouter’s weekly chart. To see what’s hot, check the trending chart.

  • Don’t compare the cost of reasoning and non-reasoning models using per-token pricing, as (by design) reasoning models output way more tokens. A better indicator of cost is the Cost to Run Artificial Analysis Intelligence Index (note the log scale on the x-axis).

  • Dandelion’s current workhorse is Gemini 2.5 Flash, in standard and thinking variants.

Note: Qwen3 235B (Reasoning) shown here is the original version, not the just-released 2507 version. I expect the 2507 version to be on the intelligence-cost frontier.

Dandelion is closing on £5m tickets sold. Why not list your next event there?

Until next time, mettā,
Stephen

p.s. I love to hear from readers. Why not hit reply and let me know what you found useful or interesting?

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