Anthropic upgrades Claude with new Opus 5 model, details here

Anthropic released Claude Opus 5, its latest large AI model, which the company says approaches the frontier intelligence of Claude Fable 5 at half the price. Opus 5 is available today at $5 per million input tokens and $25 per million output tokens, matching the pricing of Opus 4.8. The release also includes mid-conversation tool changes on the Claude Platform and automatic fallbacks on the API.

Anthropic has released its latest AI model with Claude Opus 5. The new version arrives about two months after the previous Opus model upgrade, matching Anthropic’s previous upgrade cadence. Anthropic says Opus 5 offers near Fable 5 intelligence for half the cost Anthropic currently offers a lot of AI models under the Claude umbrella. The three main models are Haiku smallest and cheapest , Sonnet medium size and price , and Opus largest and most expensive of the three . Today’s release upgrades Claude’s Opus model from version 4.8 https://9to5mac.com/2026/05/28/anthropic-upgrades-claude-with-new-opus-4-8-model-heres-whats-new/ to version 5. Anthropic describes Opus 5 as a “thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price.” Fable 5 is the released version of Mythos https://9to5mac.com/2026/06/09/anthropic-just-released-public-mythos-class-ai-model-called-claude-fable-details-here/ with safeguards, which Anthropic originally held back due to its capabilities around cybersecurity. Fable 5 remains Anthropic’s most capable model. More details from Anthropic on the new Opus 5 model option below: Opus 5 is designed to be used every day: it works more efficiently than other models. It’s the new default model on Claude Max, and the strongest model on Claude Pro. Anthropic points to two more releases today in addition to Claude Opus 5: Within a conversation, developers can now change which tools Claude can use without invalidating the prompt cache. Mid-conversation tool changes https://platform.claude.com/docs/en/build-with-claude/mid-conversation-system-messages on the Claude Platform.Users can now choose to have requests that are flagged by our safety classifiers on Opus 5 or Fable 5 automatically route to another model. With automatic fallbacks on, API requests always route to the best available model by default rather than being blocked. Automatic fallbacks https://platform.claude.com/docs/en/build-with-claude/refusals-and-fallback server-side-fallback on the API. Pricing and availability Anthropic says Claude Opus 5 is available today for every platform. Opus 5 is $5/million input token and $25/million output token, matching Opus 4.8 pricing. You can learn much more about Anthropic’s new Claude Opus 5 model release here https://www.anthropic.com/news/claude-opus-5 . Related Anthropic stories: Anthropic is giving teachers free access to premium Claude features, details here https://9to5mac.com/2026/07/14/anthropic-is-giving-teachers-free-access-to-premium-claude-features-details-here/ Anthropic upgrades Claude voice mode with more powerful models https://9to5mac.com/2026/07/23/anthropic-upgrades-claude-voice-mode-with-more-powerful-models/ Claude Code brings live iOS app testing into its Mac app https://9to5mac.com/2026/07/21/claude-code-brings-live-ios-app-testing-into-its-mac-app/ Do more with your Apple products Apple AirTag 2 | Add Find My tracking to keys, bags, bikes, more https://amzn.to/4vjNWN1 AirPods 4 | Apple’s newest wireless headphones https://amzn.to/43ndewV AirPods Pro 3 | Apple’s best wireless headphones https://amzn.to/4ut3FYp Beats USB-A to USB-C Cable | The official CarPlay cable https://amzn.to/4mpKs7K FTC: We use income earning auto affiliate links. More. https://9to5mac.com/about/ affiliate our homepage http://9to5mac.com/ for all the latest news, and follow 9to5Mac on exclusive stories https://9to5mac.com/feature/exclusive/ , reviews https://9to5mac.com/guides/review/ , how-tos https://9to5mac.com/guides/how-to/ , and subscribe to our YouTube channel https://www.youtube.com/9to5mac