holy sh*t, split that five-department Opus studio into an Agent Team and ONE Opus session quietly becomes 5 Opus bills...
with teams on, any subagent Claude names becomes a teammate, asked or not. and every teammate runs on the lead's model unless you say otherwise
1 Opus lead + 4 teammates, each reading 1M tokens and writing 100K:
→ all Opus 5.5: ~$30
→ Sonnet 5.5 teammates: ~$18
→ Haiku 5.5 teammates: ~$6.60
(list prices, no cache)
one env var fixes the default:
CLAUDE_CODE_SUBAGENT_MODEL=sonnet claude --model opus
→ Opus leads and reviews
→ any teammate without a model of its own runs on Sonnet
→ name haiku in the spawn prompt for read-only grunt work
→ teammates copy the lead's effort too, so check /effort status
you picked Opus once. the team picked it 4 more times.
one Claude Code bill trap every night. tomorrow's is already in the queue.
DEEPSEEK BURNED 11X MORE TOKENS THAN MINIMAX ON THE SAME PROMPT.
IT STILL PAID 54 CENTS. THE CATCH IS THE CACHE.
round 1. same prompt, same task, the two new flash models:
> deepseek v4.1 flash: 1h 28m, 89.5M tokens, $0.54
> minimax m3.1 flash: 1h 06m, 8.1M tokens, $0.22
minimax won the round. 22 min faster, 2.4x cheaper.
but look at that deepseek token count.
at the normal input price, 89.5M tokens is $26.85.
deepseek charges $0.006 per 1M on a cache hit.
89.5M × $0.006 = $0.54. the exact bill.
so the agent spent almost the whole run rereading its own context from cache.
the price list isn't your bill. your cache hit rate is:
> keep the system prompt and file order stable
> don't let the agent rewrite early context mid run
> every cache miss bills at full price
today deepseek open sourced deepinfer, the engine it says runs v4.1 flash at scale. the whale's kitchen is public now.
the cheapest model is the one that remembers what it already read.
one prompt, two models, real receipts. a new fight every day.
New blog post 🎉: How To Use Decision Models For Evals
In this post, we show you how to choose a decision model for your task, tune its threshold (don't assume the 0.5 default is good!), and interpret its scores.
Lots of cool interactive charts here. https://t.co/uYAfte9Kb5
@Principia_X the security block is the only part people skip. https://t.co/Cf0V4dutWo and https://t.co/cxBQ8L6H4R before you touch anything on this list
@rugikkk the best line here is "the only button that moves money is mine". six agents, zero spending rights. that's how every agent desk should be built
MINIMAX JUST SHIPPED A MODEL 26X CHEAPER THAN OPUS 5.5.
AN EARLY BUILD WAS ALREADY #1 ON OPENROUTER UNDER A FAKE NAME.
for 10 days the #1 model on openrouter was a stealth model called space bunny.
56.7T tokens. nobody knew whose it was.
today it got a name: minimax m3.1 flash.
per 1M tokens, in / out:
> opus 5.5: $4 / $20
> deepseek flash: $0.30 / $1.20
> minimax m3.1 flash: $0.15 / $0.60, flat, no peak hours
the whale's weekend price is now someone's every day price.
what $0.60 buys, by minimax's own table:
> automation bench: 62.2. opus 5: 50.3
> DeepSWE: 73.7. opus 5: 74.0
> one tester's one shot 3d pagoda: 50K tokens, about 3 cents
the catch, same table:
> terminal bench: 38.1. opus 5: 51.8. claude code lives in the terminal
> the whale still wins DeepSWE at 77.0
> weights land oct 23. free on openrouter for 72 hours, then it bills
opus didn't get worse this week.
it just got expensive.
MiniMax M3.1 Flash: Space Performance + Bunny Speed
🚀🐰 Yes, Space Bunny - which has topped global leaderboards with 200T+ tokens - was an earlier version of M3.1 Flash.
💰Redefining the performance economics of agentic AI. M3.1 Flash achieves frontier-level intelligence across key tasks such as Cowork (Automation-Bench: 62%; ALE: 30%), Coding (DeepSWE: 74%) and Visual Reasoning (BabyVision: 91%), at 1/3 the cost of M3 and 3x the speed.
API pricing (flat rate): $0.15 / $0.60 per 1M input/output tokens, with cache reads at $0.015 / 1M tokens.
Model weights will arrive on Oct 23.
API: https://t.co/fHRdSV73Hr
M Plan: https://t.co/XfJWSyauda
MiniMax Code for desktop: https://t.co/SGmLTI2HQm