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 — JULY 31, 2026
● Price: Laguna — $0.10/M (20× cheaper than Grok 4.5 at $2/M)
● Terminal-Bench 2.1: Grok 4.5 — 83.3% vs Laguna 70.2%
● Open weights: Laguna only — OpenMDW license, DGX Spark compatible
● Cursor integration: Grok 4.5 only — available on all Cursor plans
● Hallucination: Grok 4.5 — 54% (Artificial Analysis, doubled from 4.3). Laguna — not independently tested yet.
● Privacy incident: Grok Build SSH key upload (patched July 25). Laguna — none.
Laguna S 2.1 for: Maximum cost efficiency — 20× cheaper than Grok 4.5. Self-hostable on a single DGX Spark. No regulatory concerns, no privacy incident history. The default choice for teams starting a new cost-sensitive open-weight coding deployment in July 2026.
Grok 4.5 for: Higher Terminal-Bench performance (83.3% vs 70.2%), Cursor integration (zero setup change if already on Cursor), live X data access, and SuperGrok subscribers who want one plan covering voice + coding. Validate the 54% hallucination rate on your tasks before production deployment.
Last updated July 31, 2026. Related: Laguna S 2.1 full review → · Grok 4.5 full review →