4 New Claude Models: Sonnet 5, Fable 5, Opus 4.6 Pricing Compared

Quick answer

Anthropic released four new Claude models in July 2026. The lineup now spans from $2/M to $50/M on output, giving teams a Claude option at every price point. Here's what matters for your budget.

TL;DR — Anthropic released 4 new Claude models in July 2026. Sonnet 5 at $2/M undercuts GPT-4o by 20%. Fable 5 targets creative writing at $10/M. Opus 4.6 drops frontier reasoning to $5/M (down from $15/M). Sonnet 4 stays at $3/M as the mid-tier workhorse.

Key Takeaways

• Claude Sonnet 5 at $2/M input is now the cheapest premium Claude, undercutting GPT-4o by 20% (Anthropic Pricing, July 2026)
• Claude Fable 5 is Anthropic's first creative-specialist model at $10/M input, targeting long-form writing and storytelling
• Claude Opus 4.6 replaces Opus 4 as the frontier reasoning model at $5/M input (down from $15/M)
• Claude Sonnet 4 stays at $3/M input, now positioned as the mid-tier workhorse between Sonnet 5 and Opus 4.6

What are the 4 new Claude models?

In July 2026, Anthropic expanded the Claude family from 5 active models to 9, the largest single expansion since Claude 3's launch in March 2024. The move signals a shift from Anthropic's previous "three tiers" strategy (Haiku, Sonnet, Opus) to a broader lineup where each model targets a specific workload.

Here's what changed:

• Claude Sonnet 5 fills the gap below Sonnet 4, offering premium quality at budget pricing
• Claude Fable 5 is entirely new, Anthropic's first model optimized specifically for creative and narrative tasks
• Claude Opus 4.6 replaces Opus 4 with better reasoning at a 67% lower price point
• Claude Sonnet 4 stays unchanged but is now repositioned as the mid-tier option

For teams already running Claude, the pricing shifts are significant enough to warrant re-evaluating which model handles which workload.

How much do the new Claude models cost?

The pricing spread across the full Claude lineup now covers a 62x range from Haiku to Fable on output tokens. That's wider than OpenAI's spread (GPT-4o-mini to o1) and creates more routing options for cost-conscious teams.

Full pricing table

All models support Anthropic's 90% prompt caching discount on cache reads. A cached Sonnet 5 call costs $0.20/M input, making it cheaper than GPT-4o-mini's standard rate.

Citation capsule: Anthropic's July 2026 model expansion brought the Claude lineup from 5 to 9 active models, with Claude Sonnet 5 priced at $2.00/M input and $10.00/M output (Anthropic Pricing, July 2026). This positions Sonnet 5 as the cheapest premium-tier Claude model, 20% below GPT-4o's $2.50/M input and 33% below Claude Sonnet 4's $3.00/M.

How does Claude Sonnet 5 compare to GPT-4o?

At $2.00/M input, Claude Sonnet 5 directly competes with GPT-4o ($2.50/M) and GPT-4.1 ($2.00/M). For teams currently paying GPT-4o rates, Sonnet 5 offers a 20% input cost reduction with Claude-quality language understanding.

The practical question is whether the quality justifies switching. Here's how the economics work for a typical SaaS workload:

Example: 50,000 API calls/day, 1,000 input + 500 output tokens each

Claude Sonnet 5 saves $5,250/month compared to Sonnet 4, and $750/month compared to GPT-4o. GPT-4.1 is still cheaper on output ($8/M vs $10/M), but Sonnet 5 closes the gap considerably.

For teams that prefer Claude's writing style and safety profile, Sonnet 5 removes the cost penalty that previously made Sonnet 4 harder to justify against GPT-4o.

What is Claude Fable 5 and who should use it?

Claude Fable 5 is Anthropic's first model designed specifically for creative and narrative tasks. At $10/M input and $50/M output, it's positioned between Opus 4.6 and the retired Claude 3 Opus pricing. That's expensive for general use, but creative writing has different economics.

Content agencies, game studios, and publishing platforms generate revenue directly from the text these models produce. A blog post that converts, a game dialogue tree that engages players, or a marketing campaign that resonates can justify $50/M on output tokens when the alternative is hiring a copywriter at $100+/hour.

When Fable 5 makes financial sense:

• Content generation where quality directly drives revenue (ad copy, landing pages, email campaigns)
• Interactive fiction, game dialogue, and narrative design
• Long-form ghostwriting where voice consistency matters across 10,000+ words
• Creative brainstorming where you need genuinely surprising ideas, not "safe" suggestions

When it doesn't:

• Summarization, classification, data extraction (use Haiku or Sonnet 5)
• Code generation (use Sonnet 4 or Opus 4.6)
• Customer support chatbots (use Haiku 4.5)

The 5x price premium over Sonnet 4 only makes sense when creative quality is the bottleneck, not speed or cost. For most teams, Sonnet 4 or Sonnet 5 handles creative tasks well enough.

How does Opus 4.6 compare to the original Opus?

Claude Opus 4.6 replaces Opus 4 at $5.00/M input, down from the original Opus 4's $15/M. That's a 67% price cut on Anthropic's frontier reasoning model. The context window stays at 200K tokens.

This is a meaningful shift. At $15/M, Opus was a hard sell against o3-mini ($1.10/M) for reasoning tasks and GPT-4o ($2.50/M) for general use. At $5/M, the math changes:

Opus 4.6 fills a niche that o3-mini doesn't cover well: tasks requiring both deep reasoning and high-quality natural language output. Research synthesis, legal analysis, and complex report generation are workloads where Opus's language quality matters as much as its reasoning depth.

For pure math and code reasoning, o3-mini is still 4.5x cheaper on input. But for anything where the output needs to read well, Opus 4.6 at $5/M is now competitive.

Citation capsule: Claude Opus 4.6 launched in July 2026 at $5.00/M input, representing a 67% price reduction from Opus 4's $15.00/M (Anthropic Pricing, July 2026). This repositions Anthropic's frontier model from a rarely-used premium option to a viable choice for complex analysis workloads, sitting between o3-mini ($1.10/M) and o1 ($15.00/M) in the reasoning model market.

Which Claude model should you pick for each workload?

With 5 active Claude models at different price points, routing becomes the key cost lever. The wrong default model wastes 2-10x what the right one costs.

Decision framework

High volume, low complexity (classification, tagging, simple Q&A): Use Haiku 4.5 at $0.80/M. Nothing else makes sense at scale.

General production (chatbots, content generation, summarization): Use Sonnet 5 at $2.00/M. It replaced Sonnet 4 as the default choice for most workloads. The 33% savings over Sonnet 4 adds up fast at production volume.

Quality-critical features (user-facing writing, complex coding, analysis): Use Sonnet 4 at $3.00/M. When Sonnet 5's quality isn't quite enough, Sonnet 4 is the next step up. Test both on your specific prompts before deciding.

Deep reasoning (multi-step analysis, research, legal/financial review): Use Opus 4.6 at $5.00/M. The price drop from $15/M makes Opus viable for workloads that previously defaulted to GPT-4o because Opus was too expensive.

Creative specialization (narrative, storytelling, brand voice): Use Fable 5 at $10.00/M. Only when creative quality is the primary success metric and directly tied to revenue.

Cost savings from routing

A typical SaaS product sending 100,000 API calls/day can save 40-60% by routing intelligently:

• 60% of calls → Haiku 4.5 (simple tasks)
• 25% of calls → Sonnet 5 (general tasks)
• 10% of calls → Sonnet 4 (quality-critical)
• 5% of calls → Opus 4.6 (complex reasoning)

This mix averages $1.44/M input versus $3.00/M if everything went to Sonnet 4. At 100K calls/day with 1,000 tokens average input, that's $4,680/month saved.

Use Tokonomics' cost calculator to model your specific traffic mix, or set up budget alerts to catch cost spikes before they hit your invoice.

How does prompt caching work with the new models?

All four new Claude models support Anthropic's prompt caching with the same 90% discount on cache reads. This is the biggest cost lever available, especially for Fable 5 where the base rates are high.

For Fable 5, caching a 5,000-token system prompt across 10,000 daily requests saves $1,350/month. At that price point, implementing caching is a requirement, not an optimization.

Minimum cache prefix: 1,024 tokens for all four models. See our prompt caching guide for implementation details.

Frequently asked questions

Is Claude Sonnet 5 better than GPT-4o?

At $2.00/M input versus GPT-4o's $2.50/M, Sonnet 5 is 20% cheaper. Quality comparisons depend on the task. Claude models consistently score higher on creative writing and nuanced language understanding, while GPT-4o leads on structured output and function calling. Test both on your actual prompts. Use our model comparison tool to compare side by side.

Should I switch from Claude Sonnet 4 to Sonnet 5?

For most workloads, yes. Sonnet 5 costs 33% less on input ($2 vs $3/M). Run A/B tests on your specific prompts to verify quality is acceptable before migrating all traffic. For quality-critical features where you've tuned prompts specifically for Sonnet 4, keep them on Sonnet 4 until you've validated Sonnet 5's output.

What makes Claude Fable 5 different from other Claude models?

Fable 5 is Anthropic's first model optimized specifically for creative and narrative tasks. At $10/M input, it costs 5x more than Sonnet 4 and targets use cases where creative quality directly generates revenue: marketing copy, interactive fiction, game dialogue, and long-form content where voice consistency matters across thousands of words.

Does Tokonomics support all 4 new Claude models?

Yes. All four models (Sonnet 5, Sonnet 4, Opus 4.6, Fable 5) are tracked in Tokonomics with real-time pricing. Route your API calls through Tokonomics' proxy endpoint and get per-model cost breakdowns, budget alerts, and spending caps with no code changes to your prompts.

Bottom line

Anthropic's July 2026 expansion gives teams more routing options than ever. The biggest practical win is Claude Sonnet 5 at $2/M, which removes the cost penalty that previously made Claude less attractive than GPT-4o for price-sensitive workloads.

For most teams, the action items are:

1. Test Sonnet 5 on your current Sonnet 4 workloads. If quality holds, migrate and save 33%
2. Re-evaluate Opus now that it's $5/M instead of $15/M. Workloads you previously sent to GPT-4o because Opus was too expensive may now make sense on Opus 4.6
3. Ignore Fable 5 unless creative content is your core business. It's a specialist tool, not a general upgrade
4. Set up cost monitoring across models. With 5 Claude tiers to route between, tracking per-model spend becomes essential

Start tracking costs across all Claude models with Tokonomics' free tier. One URL change, full visibility.

All sources retrieved July 2026.