Claude Opus 5 from Anthropic is now available on AI Gateway.
Opus 5 improves on previous Opus models for long-horizon agentic coding, handling multi-file features, larger refactors, and end-to-end feature work, and completing full tasks rather than leaving stubs or placeholders.
Opus 5 is effective at low and medium effort, which produce quality at a fraction of the tokens and latency of higher settings. Vision is stronger on charts, documents, diagrams, and UI replication, and Opus 5 makes effective use of tools to analyze, crop, and verify visual work. It also coordinates teams of subagents well, which suits multi-agent workflows.
Reasoning is on by default. In AI SDK 7, set the reasoning effort with the top-level
Like Fable 5, Opus 5 ships with elevated cybersecurity safeguards, so benign security work can occasionally trigger a safety classifier and get blocked. To add a backstop, use AI Gateway's model fallbacks. List backup models in a
Opus 5 is compatible with Zero Data Retention.
To enable fast mode, pass
Opus 5 can be served by more than one provider. To see every provider serving it, along with per-provider pricing, supported parameters, uptime, throughput, and latency, call the model endpoints API:
Route your coding agent through AI Gateway to run Opus 5 with unified spend tracking, model fallbacks, and access to every model.
Run
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Opus 5 improves on previous Opus models for long-horizon agentic coding, handling multi-file features, larger refactors, and end-to-end feature work, and completing full tasks rather than leaving stubs or placeholders.
Opus 5 is effective at low and medium effort, which produce quality at a fraction of the tokens and latency of higher settings. Vision is stronger on charts, documents, diagrams, and UI replication, and Opus 5 makes effective use of tools to analyze, crop, and verify visual work. It also coordinates teams of subagents well, which suits multi-agent workflows.
Reasoning is on by default. In AI SDK 7, set the reasoning effort with the top-level
reasoning option, from minimal up to xhigh, or none:Like Fable 5, Opus 5 ships with elevated cybersecurity safeguards, so benign security work can occasionally trigger a safety classifier and get blocked. To add a backstop, use AI Gateway's model fallbacks. List backup models in a
models array under providerOptions.gateway, and the gateway tries them in order when the primary model fails. The same option works across every AI Gateway API format.Opus 5 is compatible with Zero Data Retention.
Fast mode
To enable fast mode, pass
speed: 'fast' in the anthropic provider options in AI SDK:Providers and endpoints
Opus 5 can be served by more than one provider. To see every provider serving it, along with per-provider pricing, supported parameters, uptime, throughput, and latency, call the model endpoints API:
Use Opus 5 in your coding agent
Route your coding agent through AI Gateway to run Opus 5 with unified spend tracking, model fallbacks, and access to every model.
Run
vercel ai-gateway coding-agents setup to detect the agents on your machine, provision a key, and write their config. See how to set it up in Claude Code.Read more
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