SFEIR analysis (firm's voice) of the general availability, on July 9, 2026, of **GPT-5.6** by OpenAI — not a single model but a **family of three tiers**: **Sol** (long-horizon/cyber/science flagship, the only one to unlock the "max" and "ultra" modes), **Terra** (everyday balanced tier, ~half the price of GPT-5.5), and **Luna** (fast/economical, high volume). All three share ~**1.05M tokens** of context, **128k** output tokens, and a knowledge cutoff of **February 16, 2026**. The most structuring fact is not a score but an **aggressive pricing grid** (Sol $5/$30, Terra $2.50/$15, Luna $1/$6 per million tokens): Sol keeps the previous flagship's price while being more capable, forcing the comparison onto the **capability-to-cost ratio**. Two billing subtleties (cache writes billed at **1.25×**, a surcharge beyond **272k** tokens) make the grid misleading until one has measured how much context the agent re-reads (read/write ratio ~**153:1** in agentic coding). Engineer's verdict, claimed to be neutral (SFEIR is both a **Google Cloud Premier** partner *and* an **Anthropic** partner): **no one sweeps every table** — GPT-5.6 dominates Terminal-Bench 2.1 and the Coding Agent Index (at a third of the cost per task), Claude stays ahead on SWE-Bench Pro (~15 pts); METR flagged a record **reward hacking** rate on Sol. Conclusion: "stop looking for the champion, learn to route" — the model is a commodity, the durable advantage lies in **Context/Harness Engineering**.
In-depth opinion piece (point of view) published on **sfeir.com** on June 24, 2026, by **Didier Girard** (Managing Director, SFEIR). **Central thesis**: in 2024 everyone was betting on **AI4Business** (AI in business processes) as the great value reservoir; by 2026 the picture has **reversed** — it is **AI4IT** (AI to produce the information system: code, SDLC, software factory) that is creating **measurable** value. The article *grounds* this thesis in the firm's tech watch: AI4Business disappointment (the MIT study "95% of pilots without ROI," contested but revealing; an **organizational** blockage / Mollick's Hayekian problem) versus quantified AI4IT evidence (Salesforce, Intercom, Raiffeisen, AWS/Bedrock, Atlassian, DORA). Mechanistic explanation: **code verifies itself** (compilation, tests, CI) whereas business processes have neither a compiler nor an immediate feedback loop. **2027 budget consequence**: a **CapEx→OpEx** shift, token price dynamics (rising peak — Fable 5 at 2× Opus — vs inference ÷280 and downward pressure from open weights/desktop), and **AI FinOps** driven by **cost per outcome**. Closes with **4 recommendations for the COMEX**.
#AI4IT#AI4Business#reversal
**Didier Girard** — Managing Director (CTO / DG) de **SFEIR** · ESN française (~1 000 personnes, France · Belgique · Luxembourg · Suisse). Auteur de l'article ; voix éditoriale du cabinet sur la transformation IA des DSI.
Blog post by **Pasquale Pillitteri** (software engineer, Palermo) published on **May 29, 2026** (FR version), 18-minute read, *Claude Code & Anthropic* section. **Pivot thesis**: *« Claude Opus 4.8 is the most powerful SEO model of 2026, but almost everyone uses it wrong »* — not a model problem but a **system** problem. The golden rule: ***« strategy is a whiteboard, production is an assembly line »*** — SEO must be **split into two distinct phases**, and mixing them is *« the fastest way to waste a model that costs five dollars per million input tokens and twenty-five for output »*. **Model context**: Opus 4.8 released on **May 28, 2026** (41 days after Opus 4.7), **1M-token** context, **GraphWalks Long-Context F1 at 1M: 40.3% → 68.1%**, **SWE-bench Verified 88.6%**, **USAMO 2026 96.7%** (+27.4 pts), **HLE with tool 57.9%**, unchanged price **$5/$25** per M tokens, **Fast Mode 2.5× at $10/$50**, four **effort levels** (Low, High, Extra, Max). **The central anti-pattern** = *« the giant conversation »* / **context drift**: mixing strategy, keyword research, competitive analysis and writing in a single chat produces a *« mush of contradictory intentions »* → the model slides toward **generic best practices** ("holistic optimization", "strategic approach") instead of data-anchored content. **Phase 1 — Strategy (whiteboard, visual UI, one-off)**: dashboard / Google Sheet / Claude.ai canvas to decide while looking at the data together. **3 plays**: (a) **classified keyword research** (table of volume / difficulty 0-100 / intent / business potential / priority = volume÷difficulty×business weight); (b) **visual competitive analysis** (topic-coverage matrix, gaps); (c) **phased roadmap** (quick wins M1-2 / medium term M3-6 / pillar pages M7-12). **Extra/Max** mode is justified here (*« one right strategic decision is worth a thousand well-written pages on the wrong keywords »*). 3 closed artifacts saved to Notion/Drive. **Phase 2 — Production (assembly line, Opus 4.8 + MCP)**: the model shifts from strategist to **execution machine**; every decision **anchored to live data** via the **Model Context Protocol**. **Minimum MCP stack**: **GSC MCP** (AminForou/mcp-gsc, 500+ stars), **official Ahrefs MCP** (98 stars), **GA4 MCP**; the `modelcontextprotocol/servers` repo = **86,440 stars**, **10,000+ active servers**, 97M SDK downloads/month. Setup ~35 min, monthly refresh ~20 min. **Weekly loop**: a single prompt pulls live data, builds the brief (top 10 SERP + GSC + Ahrefs), derives H2/H3, writes, checks density, suggests titles → **+45% productivity**, draft in **6-12 min** (explicit reference to **Ryan Law / Ahrefs content engineering**, 23 skills). Mentions Anthropic's **Dynamic Workflows** (up to 1,000 subagents). **4 common mistakes**: (1) not checking the numbers (spot-check mandatory, *trust & verify*); (2) fully replacing Semrush/Ahrefs (MCP is a **layer on top**, not a substitute); (3) ignoring the **paid-organic content gap** (education client case: **2,742 wasted terms / 351 opportunities** identified in 90 s); (4) using Opus 4.8 where **Haiku 4.5** suffices (meta descriptions, alt text). **Cost**: $1-3 per 2,500-word article. **Sonnet 4.6** suffices for recurring production, Opus 4.8 reserved for strategy. SEO-optimized and self-referential article (the author writes about SEO in content itself designed to rank for "Opus 4.8 SEO"). Direct convergence with **Ryan Law/Ahrefs** (cited), **systems around the model** (Dropbox/Okumura), **skills-over-prompts** (Lattice), Haiku/Sonnet/Opus model routing (Gupta token-to-outcome).
#Claude Opus 4.8#AI SEO#two-phase workflow
**Pasquale Pillitteri** — Ingénieur informatique / développeur logiciel basé à **Palerme** (Italie) · certifié Innovation Manager UNI 11814:2021. Auteur d'un blog tech actif (rubrique *Claude Code & Anthropic*) · avec une newsletter hebdomadaire (~3,4k lecteurs). Article publié en version **FR** le **29 mai 2026** (lendemain de la sortie d'Opus 4.8).