Opus 5 Beats Fable 5 on Coding at Half the Cost

Avinash
By
Avinash
Avinash is a dedicated MBA professional with expertise in business operations, team management, and AI-driven content development. Backed by global certifications and published HR research, he...
Anthropic introduced Claude Opus 5 with near-frontier coding performance at half the cost of Fable 5, reinforcing the industry's shift toward price-efficient enterprise AI.

Quick Take

  • Anthropic launched Claude Opus 5 on July 24, 2026, priced at $5 (Rs 483) per million input tokens.
  • Opus 5 tops coding and knowledge work benchmarks at half the cost of Fable 5.
  • An effort setting lets teams trade intelligence for speed, cutting token spend on routine tasks.

Opus 5 beats Fable 5 on coding and knowledge work benchmarks while costing half as much, Anthropic said on July 24, 2026. The new model is priced at $5 (Rs 483) per million input tokens and $25 (Rs 2,414) per million output tokens.

The claim needs one caveat. Opus 5 is not the smartest Claude model overall, that title still belongs to Fable 5 and Mythos 5. But on software engineering and professional tasks, Opus 5 sets a new state-of-the-art, per Anthropic’s launch announcement. It is now the default model on Claude Max and the strongest option on Claude Pro.

StartupFeed Insight

The real story is not raw power, it is unit economics. Anthropic is betting most valuable AI work sits in a middle band of difficulty, where near-frontier intelligence delivered cheaply beats a costlier top model. Enterprise buyers burned by Fable 5’s high token burn will notice. Watch Indian SaaS teams and AI startups, who run tight compute budgets, migrate coding and agent workloads to Opus 5 first. StartupFeed expects Anthropic to ship a Sonnet-tier refresh at this same price-for-performance pitch before the end of 2026, as it races OpenAI ahead of a planned IPO. By StartupFeed Desk.

Opus 5 Beats Fable 5: The Numbers

Opus 5 is Anthropic’s upgrade to the Opus tier, replacing Opus 4.8 at the same price. The table below sets out the core launch facts.

Metric Detail Notes
Model Claude Opus 5 Upgrades Opus 4.8
Launch date July 24, 2026 Available on all platforms
Input price $5 (Rs 483) per million tokens Same as Opus 4.8
Output price $25 (Rs 2,414) per million tokens Same as Opus 4.8
Cost vs Fable 5 Half the price On coding tasks
Frontier-Bench v0.1 Doubles Opus 4.8 score Tops all other models

The standout figure: on Frontier-Bench v0.1, Opus 5 more than doubles Opus 4.8’s score at a lower cost per task, Anthropic reported. On CursorBench 3.2 at max effort, it lands within 0.5% of Fable 5’s peak, at half the cost.

About Anthropic

Anthropic is an AI safety company founded in 2021 by former OpenAI staff including Dario and Daniela Amodei, headquartered in San Francisco. It builds the Claude family of models across five tiers: Haiku, Sonnet, Opus, Fable, and Mythos. The company reached a roughly $350 Bn valuation in late 2025 and filed confidential IPO paperwork in June 2026.

Why is Opus 5 cheaper than Fable 5?

Opus 5 is cheaper because it targets everyday work, not the hardest autonomous tasks. Anthropic priced it identically to Opus 4.8 while nearly matching Fable 5’s intelligence on coding. A new effort setting, low, medium, or high, lets customers dial how many tokens the model spends, trading capability for cost.

“Claude Opus 5 delivers near Fable 5 intelligence at Opus speed and cost. On CursorBench it’s just under Fable 5 and has many of the same behaviors,” said Sualeh Asif, Co-Founder, Cursor.

Fable 5, released in June 2026, drew criticism for a high token burn rate that ran up large bills. Opus 5 answers that directly. Anthropic still recommends Fable 5 for advanced projects that run autonomously for days.

How does Opus 5 compare to rivals?

Opus 5 arrives in a crowded race where price now matters as much as peak scores. OpenAI shipped its GPT-5.6 family earlier in July 2026, and China’s Moonshot AI released the open-weight Kimi K3 model, which the lab said nears both Fable 5 and GPT-5.6 in capability.

Model Maker Positioning
Opus 5 Anthropic Near-frontier coding, half the cost
Fable 5 Anthropic Top intelligence, higher token burn
Kimi K3 Moonshot AI Open-weight, low cost

What sets Opus 5 apart is the cost-per-result framing. On several benchmarks it beats every rival at any given price point, not just at peak spend.

What Opus 5 means for Indian founders

For India’s developer and startup market, cheaper near-frontier intelligence lowers the cost of shipping AI features. Teams building coding agents, automation tools, and analytics products can now run heavier workloads without the Fable 5 bill. Anthropic also added automatic fallbacks, so flagged requests route to another model instead of failing. Will price-led competition push Indian AI startups to build on Opus 5 by default?

Frequently Asked Questions

Does Opus 5 beat Fable 5?
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Opus 5 beats Fable 5 on coding and knowledge work benchmarks at half the cost, per Anthropic. It is not the smartest Claude model overall, though. Fable 5 and Mythos 5 still lead on the hardest autonomous, cyber, and biology tasks.

How much does Claude Opus 5 cost?
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Claude Opus 5 costs $5 (Rs 483) per million input tokens and $25 (Rs 2,414) per million output tokens. This matches the price of Opus 4.8. A Fast mode runs at twice the base price for around 2.5 times the speed.

What is the effort setting in Opus 5?
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The effort setting lets users choose low, medium, or high reasoning per task. Higher effort means more tokens and more intelligence. Lower effort saves tokens and cost for routine work, giving teams direct control over their spend.

Which is better for hard tasks, Opus 5 or Fable 5?
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Fable 5 is better for the hardest projects, especially long tasks that run autonomously for days. Anthropic still recommends it there. Opus 5 fits everyday coding, agents, and knowledge work, where it delivers similar quality at half the price.

Where can I use Claude Opus 5?
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Claude Opus 5 is available today on all Anthropic platforms, including the Claude API using the string claude-opus-5. It is the default model on Claude Max and the strongest model on Claude Pro. Developers can also use it in Claude Code.

Written by Avinash. Have a tip? Write to us at editorial@startupfeed.in.

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Avinash is a dedicated MBA professional with expertise in business operations, team management, and AI-driven content development. Backed by global certifications and published HR research, he leverages innovation and strategic management to drive organizational success.

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