MODEL VERSIONS ON THIS PAGE HAVE MOVED — CHECKED 8 OCTOBER 2026
Current line, with published API pricing per million tokens:
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OpenAI — GPT-6 Sol (paid ChatGPT), GPT-6 Luna ($0.10 / $0.50), GPT-6.1 Sol ($2.00 / $10.00), GPT-6 Astra
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Anthropic — Claude Opus 5.5, Sonnet 5.5 ($2.00 / $10.00), Haiku 5.5 ($0.10 / $0.50 below 100K), Fable 5.1
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xAI — Grok 4.3 ($1.25 / $2.50), Grok 4.7 ($2.00 / $6.00)
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Google — Gemini 3.5 Flash-Lite ($0.30 / $2.50), Gemini 3.8 Flash ($0.75 / $3.75 to 31 Dec), Gemini 4 Argon
The comparison below is kept because the reasoning still holds — how these tiers trade price against capability has not changed. The version numbers and prices have.
Current pricing table →
QUICK VERDICT — AUGUST 2, 2026
● Price: Allegretto $39/mo · Sonnet 5 Pro subscription $20/mo (or $2/M API through Aug 31)
● Best for agentic coding: Kimi Allegretto — Agent Swarm, Kimi Code 5x, Kimi Claw browser agent
● Best for writing/analysis: Claude Sonnet 5 — adaptive thinking, 128K output, best long-form quality
● Agent Swarm: Allegretto — 50 runs, 4 concurrent. Sonnet 5 — not included in subscription.
● Browser agent: Allegretto — Kimi Claw. Sonnet 5 — not included.
● Regulatory risk: Allegretto — Treasury sanctions warning on Moonshot. Sonnet 5 — none.
● API tokenizer: Sonnet 5 — 10-35% more tokens per request than Sonnet 4.6. Factor into cost.
Kimi Allegretto for: Teams running regular Agent Swarm workflows, Kimi Code sessions, or browser automation through Kimi Claw. The $39/month is only justified if you hit Moderato's limits regularly and need the 4-concurrent-subtask Agent Swarm or higher Kimi Code credits. Check the shared credit pool — chat and coding draw from the same bucket.
Claude Sonnet 5 for: Writing, content generation, long-form analysis, and API workloads. Front-load usage before August 31 at $2/M. After September 1 the $3/M price plus the tokenizer uplift makes cost modelling important — run your actual workload through the Sonnet 5 tokenizer to measure the real per-request impact.
Last updated August 2, 2026. Related: Kimi Allegretto vs Claude Pro → · Sonnet 5 deadline action plan →