Claude 5: Everything Anthropic Has Shipped in 2026

The wait for “Claude 5” is over. Anthropic never shipped one monolithic model called Claude 5, so the fifth generation arrived tier by tier instead, and on July 24, 2026 the last gap closed when Claude Opus 5 replaced Opus 4.8 as the flagship. It launched at $5 per million input tokens and $25 per million output, the same price Opus 4.8 charged, and went straight to the top of the Artificial Analysis leaderboard on both the Intelligence Index and the Agentic Index. Anthropic has kept moving since: Claude Fable 5.1 and Claude Mythos 5.1 arrived on September 1, 2026 and put the Mythos class back on top.

That makes the honest answer to “is Claude 5 out” a straight yes across every tier, where a month ago it was still a qualified one. This guide lays out exactly what shipped and when, what each model is actually for, how the new flagship compares to the Mythos class above it, and which Claude to use today. No leaked screenshots, no fake login pages, just the confirmed lineup and where it leaves you.

The Key Takeaways

• There is no single “Claude 5” model. Anthropic versions each tier on its own, so the 5-generation landed in pieces rather than at one launch.
• Claude Opus 5 shipped July 24, 2026 at $5/$25 per million tokens under the API id claude-opus-5, closing the last gap in the generation.
• It went to number one on Artificial Analysis at launch, with 61 on the Intelligence Index and 55.3 on the Agentic Index. It now reads 63 and 59, second on both to Claude Fable 5.1.
• Claude Sonnet 5 shipped June 30, 2026 at $2/$10, an introductory rate made permanent on Aug 10, 2026, with a 1M-token context window.
• The Mythos tier still matters. Fable 5 and its unrestricted sibling Mythos 5 launched June 9, and Mythos 5 remains well ahead of Opus 5 on offensive security work.
• The generation has had a point release. Claude Fable 5.1 and Claude Mythos 5.1 shipped on September 1, 2026, and Fable 5.1 leads the Intelligence Index at 66 against Opus 5’s 63.

Is Claude 5 Out? Yes, and the Last Gap Just Closed

Anthropic does not release a numbered “Claude 5” the way OpenAI ships a “GPT-5.” Each tier, Haiku, Sonnet, Opus, and the newer Mythos class, carries its own version number and moves on its own schedule. That is why there was never going to be a single launch day. The 5-generation crossed over one tier at a time across 2026.

Three moments matter. On June 9, 2026, Anthropic opened a fourth tier above Opus, the Mythos class, and made it publicly usable through Claude Fable 5. Three weeks later, on June 30, the Sonnet tier crossed into 5 with Claude Sonnet 5, covered at launch by TechCrunch. The Opus line held at 4.x for another month, moving 4.7 to 4.8 rather than jumping a whole number, until Claude Opus 5 finally landed on July 24 per Anthropic’s own announcement.

The Confirmed Claude Lineup (September 2026)

Here is every Claude model you can actually reach today, top tier first. The Mythos class still sits above the rest for long autonomous and security work, Opus is the flagship again, Sonnet is the value-agent pick, and Haiku is the budget workhorse.

*Sonnet 5 launched on introductory pricing due to rise to $3/$15 on September 1, 2026; Anthropic cancelled that increase on August 10, 2026, so $2/$10 is permanent. Claude Opus 4.8 (May 28, 2026) is now the previous flagship and stays available in the API at the same $5/$25. Full numbers are in our Claude pricing breakdown.

What Each “5” Model Actually Is

Claude Sonnet 5

Claude Sonnet 5 is the value pick of the group. Released June 30, 2026 with model ID claude-sonnet-5, it is built for agentic work, planning a sequence of steps, calling tools, reading the result, and continuing without a human nudging it at every turn. It ships with a 1M-token context window and a January 2026 knowledge cutoff, and it is the default model for Free and Pro users on Claude.ai, plus Claude Code, the API, Cursor, VS Code, and GitHub Copilot.

On agentic coding it scores around 63.2%, behind the Opus tier but well ahead of Sonnet 4.6, and on some knowledge-work tests it edged out Opus 4.8 outright at roughly a quarter of the price. For most people running agents or everyday coding, it is still the right default, and Opus 5 is the step up rather than the replacement.

Claude Fable 5 and Mythos 5 (the Mythos class)

Claude Fable 5 is the public face of Anthropic’s top tier, a fourth step that sits alongside Haiku, Sonnet, and Opus rather than inside the same ladder. It launched June 9, 2026 at $10/$50 per million tokens and is built for long-running autonomous work rather than quick chat. Its unrestricted sibling, Claude Mythos, keeps the same capability with the safety layer removed and stays gated to vetted partners.

Both models were briefly pulled offline on June 12 under a US export-control order, then restored after the controls were lifted on June 30. Fable 5 came back globally on July 1, while Mythos 5 returned only to a set of approved US organizations. Opus 5 has since passed Fable 5 on the headline leaderboards at half the price, but Mythos 5 remains the stronger model for offensive security work, and the September 1, 2026 refresh to Fable 5.1 and Mythos 5.1 put the tier back in front, so it has not been made redundant.

Claude Opus 5 (the new flagship)

Claude Opus 5 is the model that finally closes the generation. Released July 24, 2026 under the API id claude-opus-5, it holds the same $5/$25 pricing as Opus 4.8 while landing roughly half the cost of Fable 5. It is the new default model on Claude Max and the strongest model available on Claude Pro, and it also runs in Claude Code and Claude Cowork.

Two things are genuinely new. A Fast mode runs at about 2.5 times the default speed for twice the base price, and an effort setting lets you dial from low up to a new max tier, trading tokens against depth of reasoning. On Artificial Analysis’s v4.1 leaderboard it took first place on both indexes at launch, 61 on the Intelligence Index and 55.3 on the Agentic Index, ahead of Fable 5 (60 and 52.8) and GPT-5.6 Sol (59 and 54.0). On the current v4.1.1 reading it sits second on both, at 63 and 59, behind Claude Fable 5.1 on 66 and 61.

Anthropic’s own reported numbers point the same way, with more than double Opus 4.8’s score on Frontier-Bench v0.1, a CursorBench 3.2 result within 0.5% of Fable 5 at max effort, and roughly three times the next-best model on ARC-AGI 3. Those are vendor benchmarks, so treat them as directional. The one clear weak spot Anthropic discloses is security, where Opus 5 matches Mythos 5 at finding vulnerabilities but stays substantially behind it at exploiting them.

Where Claude 5 Goes From Here

With Opus at 5, every tier that carries a public version number has crossed into the generation, and the obvious open question moves down the ladder rather than up. Haiku is now the oldest model in the lineup at 4.5, dating to October 2025, which makes a Haiku 5 the most plausible next release. Anthropic has not announced one, and no date has been published.

The other open question, whether the Mythos tier would keep its lead, has been answered. Opus 5 had passed Fable 5 on the public leaderboards at half the price, narrowing the gap that justified a separate top tier, and Anthropic answered on September 1, 2026 with Fable 5.1 and Mythos 5.1, which put the class back in front at 66 on the Intelligence Index against Opus 5’s 63. Treat any leaked model ID, price sheet, or benchmark for an unannounced Claude as fiction until it shows up in Anthropic’s own docs.

Which Claude Should You Use Right Now?

Picking well saves both money and time. Use Claude Opus 5 when the task is genuinely hard, deep debugging, subtle judgment calls, or research where a wrong answer is expensive, and turn the effort setting up when you would rather spend tokens than get it wrong. If you are on Claude Max it is already your default.

Reach for Claude Sonnet 5 for agent loops, everyday coding, and anything that feeds a large context, since it delivers close to flagship quality at a fraction of the cost. Drop to Haiku 4.5 for high-volume, simple jobs like classification, log analysis, or chat triage, where paying Opus rates would just be burning money. Go to Fable 5.1 or Mythos 5.1 only for multi-day autonomous runs or serious security research, which is the one area where Opus 5 does not lead.

And if you would rather not juggle four model choices or separate subscriptions, Fello AI puts every Claude tier alongside GPT, Gemini, Grok, and DeepSeek in one app for Mac, iPhone, and iPad, so you can switch models mid-task and always land on the right one.

Conclusion

“Claude 5” turned out to be a generation rather than a single model, and as of July 24, 2026 all of it is here. Sonnet 5, Fable 5, Mythos 5, Claude Opus 5 and, since September 1, 2026, Fable 5.1 and Mythos 5.1 are all live, and the flagship tier is no longer the odd one out. The practical move is to use Claude Sonnet 5 for value and agents and step up to Opus 5 for the hardest problems. To see how they stack up against everything else, check our guide to the best AI models right now, and if you want every tier in one place, start with Fello AI.

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