Artificial Intelligence
Claude in India 2026: Opus 5 vs Sonnet 5, and What Each Costs
Two models at a 2.5x price gap, and the cheaper one covers most work. The interesting news in August 2026 was a pricing decision, not a benchmark.
By Maya Iyer · Updated · 10 min read
Short answer
Should I use Claude Opus 5 or Sonnet 5?
Claude Opus 5 is priced at $5 per million input tokens and $25 output. Claude Sonnet 5 is $2 and $10, and on 10 August 2026 Anthropic made that introductory pricing permanent - the planned step up on 1 September was cancelled. Sonnet 5 was launched on 30 June as a cheaper way to run agents, and for most work it is the right default. Opus 5 earns its premium on large codebases and multi-file work.
Our practical verdict
Claude in August 2026 is two models with a clear division of labour. Opus 5 is the flagship at $5 per million input tokens and $25 output. Sonnet 5, launched on 30 June as a cheaper way to run agents, sits at $2 and $10.
The notable development was a pricing decision rather than a capability one. Sonnet 5's introductory rates were scheduled to run through 31 August, with a step up implied on 1 September. On 10 August Anthropic made them permanent. Anyone who had budgeted around a September increase can stop.
That makes Sonnet 5 the sensible starting point. At two-fifths of Opus 5's output cost it handles the bulk of professional work, and the honest way to justify Opus 5 is to find a task that measurably fails on Sonnet rather than one that merely feels better.
Shortlist
Recommended options to compare
Use this as a starting list, then compare live India prices and warranty before buying.
Pick 1
Opus 5, $5 in / $25 out per million tokens
The flagship, and the strongest option for complex coding across large codebases or multi-file changes. Also the model that wins most blind writing comparisons. Buy it for work where the quality of the output is the product.
Pick 2
Sonnet 5, $2 in / $10 out
Launched 30 June 2026 as a cheaper way to run agents, and permanently priced at these rates since 10 August. At two-fifths of Opus 5's output cost, this is the tier to benchmark against first.
Pick 3
The permanent pricing matters
Introductory pricing was set to run through 31 August with a step up implied on 1 September. That step is gone. If you were planning around a September increase, you no longer need to.
Pick 4
Where Claude leads
Long documents, careful writing and editorial review, and coding across large repositories. In blind testing it takes its widest margins in writing-focused categories.
Pick 5
Where it does not
Breadth of consumer ecosystem, image generation and third-party app integrations, where a general assistant usually fits better.
Which option should you choose?
Opus 5, $5 in / $25 out per million tokens
The flagship, and the strongest option for complex coding across large codebases or multi-file changes. Also the model that wins most blind writing comparisons. Buy it for work where the quality of the output is the product.
Sonnet 5, $2 in / $10 out
Launched 30 June 2026 as a cheaper way to run agents, and permanently priced at these rates since 10 August. At two-fifths of Opus 5's output cost, this is the tier to benchmark against first.
The permanent pricing matters
Introductory pricing was set to run through 31 August with a step up implied on 1 September. That step is gone. If you were planning around a September increase, you no longer need to.
Where Claude leads
Long documents, careful writing and editorial review, and coding across large repositories. In blind testing it takes its widest margins in writing-focused categories.
Where it does not
Breadth of consumer ecosystem, image generation and third-party app integrations, where a general assistant usually fits better.
Choice IQ pick
Need the faster shortlist?
Start with our recommended options, then compare the tradeoffs that matter for your budget and workflow.
See top picksHow to decide
Pick the option around the job you need done. This is the fastest way to avoid paying for something that looks impressive but does not change your real workflow.
| Situation | Best starting point | Final check |
|---|---|---|
| Opus 5, $5 in / $25 out per million tokens | The flagship, and the strongest option for complex coding across large codebases or multi-file changes. Also the model that wins most blind writing comparisons. Buy it for work where the quality of the output is the product. | Use this as a shortlist, then verify the final details before committing. |
| Sonnet 5, $2 in / $10 out | Launched 30 June 2026 as a cheaper way to run agents, and permanently priced at these rates since 10 August. At two-fifths of Opus 5's output cost, this is the tier to benchmark against first. | Use this as a shortlist, then verify the final details before committing. |
| The permanent pricing matters | Introductory pricing was set to run through 31 August with a step up implied on 1 September. That step is gone. If you were planning around a September increase, you no longer need to. | Use this as a shortlist, then verify the final details before committing. |
| Where Claude leads | Long documents, careful writing and editorial review, and coding across large repositories. In blind testing it takes its widest margins in writing-focused categories. | Use this as a shortlist, then verify the final details before committing. |
Read the editorial notes
Where Opus 5 earns the premium is complex coding - specifically projects involving large codebases or multi-file work, where holding context across many files is the whole difficulty. It is also the stronger writing model: in blind testing across eight categories Claude won four, with its widest margins in the writing-focused ones. If you produce reports, long-form content or marketing copy where the prose is the deliverable, that is the relevant finding.
The limitation is breadth. Claude is not the place to go for image generation, a wide consumer app ecosystem, or deep third-party integrations. Those are real needs for some buyers and they point at a different product.
For Indian buyers, check the final card charge including tax, confirm your employer's policy on work files in a consumer workspace, and keep client-confidential material, financial records and identity documents out of it regardless of which model you pick.
Decision shortcut
Still comparing options?
Use the table above to shortlist your best fit, then check related picks, tools, and buying guides before you make the final call.
FAQ
Should I use Claude Opus 5 or Sonnet 5?
Start on Sonnet 5 at $2 input and $10 output per million tokens - it covers most work at two-fifths of the flagship's output cost. Move to Opus 5 at $5 and $25 for large codebases, multi-file changes, or writing where quality is the deliverable.
Did Claude Sonnet 5 pricing go up in September 2026?
No. Anthropic made the introductory $2 and $10 rates permanent on 10 August 2026. The step up that had been implied for 1 September was cancelled.
Is Claude better than ChatGPT for writing?
In blind comparisons Claude takes its largest margins in writing-focused categories, so it is the stronger pick for reports, long-form content and anything where the prose itself matters. For mixed everyday work a general assistant is usually broader.
Features, model access, limits, privacy controls, and India billing can change. Choice IQ evaluates practical workflow fit and recommends checking the provider's current official terms before paying.
AI Tools Editor
Maya reviews AI products, productivity systems, and automation workflows with a focus on practical adoption.
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How Choice IQ evaluated this guide
Choice IQ evaluated Claude on Opus 5 and Sonnet 5 pricing per million tokens, the August 2026 decision to make Sonnet 5 rates permanent, long-context consistency, writing and critique quality in blind comparison, large-codebase coding, India billing, and which model most work actually needs.
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