Anthropic serre la vis : l’accès à l’API Claude désormais restreint pour OpenAI

Anthropic tire un coup de semonce dans la guerre des IA. L'accès à l'API Claude - leur modèle phare - vient d'être partiellement verrouillé pour OpenAI. Une décision qui sent le règlement de comptes entre concurrents.

Les développeurs pris en étau

Les utilisateurs hybrides des deux plateformes devront revoir leur copie. Anthropic justifie ce mouvement par des "impératifs de performance" - traduction : on ne veut pas que notre infrastructure ralentisse à cause des requêtes OpenAI.

Le sous-texte financier ?

Derrière les arguments techniques se profile une bataille commerciale. Chaque requête API représente des centimes qui s'accumulent en millions - et visiblement, Anthropic a fait le calcul. Dommage pour l'"open collaboration" tant vantée dans le milieu... jusqu'à ce que les VC demandent leur retour sur investissement.

OpenAI allegedly used custom APIs for Claude access

According to insiders, OpenAI integrated Claude into its proprietary toolchain via custom APIs rather than the usual chat portal. This arrangement enabled OpenAI to assess Claude’s performance on programming and writing tasks, and to evaluate its responses to safety-related queries regarding areas such as CSAM, self-harm, and defamatory content.

The findings were then used to compare Claude against OpenAI’s in-house models and to fine-tune OpenAI’s systems accordingly.

In response, OpenAI’s chief communications officer, Hannah Wong, said “It’s industry standard to evaluate other AI systems to benchmark progress and improve safety. While we respect Anthropic’s decision to cut off our API access, it’s disappointing considering our API remains available to them.”

Nulty also mentioned that granting API access for purposes like benchmarking and safety reviews remains part of standard industry practice. The company has not clarified how the current restriction on Claude access might affect OpenAI’s ongoing evaluations.

API restrictions have long been wielded as leverage in the tech sector.

For instance, Facebook previously cut off Vine (owned by Twitter), and more recently, Salesforce imposed constraints on rival Slack integrations.

Anthropic enacted a comparable measure against the AI code startup Windsurf amid speculation of an OpenAI takeover, but the deal never happened. Anthropic’s chief science officer, Jared Kaplan, told TechCrunch, “I think it would be odd for us to be selling Claude to OpenAI.”

Anthropic to enforce weekly usage caps on Claude code

Anthropic recently revealed plans to introduce weekly caps on Claude Code to reduce continuous background consumption by users.

The company said in an email and on X that the new limits will start on August 28.

These restrictions will affect users on the $20 Pro tier as well as those on the $100 and $200 Max tiers. Existing five-hourly usage quotas will remain unchanged.

Moreover, the update includes two separate weekly quotas: a general usage cap and a model-specific allowance for Claude Opus 4. Max-tier subscribers will have the option to purchase additional capacity at Anthropic’s standard API pricing once they exceed the weekly thresholds.

This adjustment builds on a subdued deployment of usage ceilings for Claude Code implemented earlier this summer.

Claude Code is popular with developers, but Anthropic has had trouble keeping up with demand. Its service had seven major or partial outages last month, likely caused by heavy use from a small group of users.

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