Anthropic's Claude Opus 5 Matches Flagship Intelligence at Half the Price
Claude Opus 5 lands in Lovable with a 22% coding boost over Opus 4.7, same price as its predecessor, and near-Fable-5 intelligence at half the cost
- Claude Opus 5 is live today across all Anthropic platforms and in Lovable, priced at $5/$25 per million input/output tokens, same as Opus 4.8.
- 22% better on Lovable's hardest coding tasks vs. Opus 4.7, with significantly less run-to-run variance, the metric that matters most for production app builders.
- Near-Fable-5 performance at half the cost: within 0.5% of Fable 5 on CursorBench 3.2 at max effort, and 3x the next-best model on ARC-AGI 3.
- Tunable effort setting (low/medium/high/xhigh) lets developers trade off cost vs. capability per request, a new lever for agentic pipeline cost control.
- Most aligned model Anthropic has shipped: lowest deceptive behavior score, best self-correction, and stronger judgment on long-horizon agentic tasks.
- Two new API beta features: mid-conversation tool swaps without cache invalidation, and automatic safety-classifier fallbacks to avoid blocked requests.
Claude Opus 5 is out today, and Lovable is one of the first platforms to ship it. Anthropic's new flagship Opus model delivers near-Fable-5 intelligence at half the price, with the strongest coding and knowledge-work scores the company has ever published on a generally available model.
Opus 5 is the fourth model Anthropic has shipped in under two months, following Mythos 5, Fable 5, and Sonnet 5 in June — an unusually compressed release cadence even by AI industry standards.
The gap Opus 5 fills
The Opus tier had been caught in an awkward position. Sonnet 5 arrived at the end of June performing close to Opus 4.8 at a fraction of the cost, while Fable and Mythos sat above it. Enterprises on Max, Team, and Enterprise plans needed a capable middle ground that didn't carry Mythos-class pricing. Opus 5 is that answer: more capability than its predecessor at the same cost, closing most of the gap to Fable 5 without closing the gap in price.
What the benchmarks actually show
On coding and knowledge-work evaluations, Opus 5 sets new state-of-the-art marks, though it trails Mythos 5 on cybersecurity tasks. The numbers across key benchmarks:
- Frontier-Bench v0.1: Opus 5 surpasses all other models and more than doubles Opus 4.8's performance at a lower cost per task.
- CursorBench 3.2: At max effort, Opus 5 performs within 0.5% of Fable 5's peak score at half the cost per task.
- ARC-AGI 3 (novel problem-solving): Opus 5's score is three times higher than the next-best model.