Cheap Claude Sonnet 4.6 API: Prices, Coding Costs and Access

Sonnet 4.6 API from $0.540468 input / $2.70234 output per million tokens. Compare Standard, Batch, Sonnet 5.5 and Opus 4.8, with API-key setup.

Claude Sonnet 4.6cheap Sonnet 4.6 APIClaude API pricingAPIMaster

Published 2026-11-09 · Updated 2026-11-10

Quick Answer

Claude Sonnet 4.6 starts at $0.540468 input / $2.70234 output per million tokens on APIMaster, up to about 82% below Anthropic Standard. The Sonnet 4.6 model card lists 13 enabled public routes. Use claude-sonnet-4-6 to keep the version explicit.

Checked November 9, 2026 (UTC+8). USD per million input / output tokens, uncached. Counts exclude client-exclusive routes; ranges pair the lowest- and highest-input-priced offers. Current pricing and availability follow the live marketplace card.

Model ID	Original price	APIMaster current price	Active routes	Discount	Model card
`claude-sonnet-4-6`	$3 / $15	From $0.540468 / $2.70234; range up to $3 / $15	13	Up to about 82% off	Get Sonnet 4.6
`claude-sonnet-5-5`	$2 / $10	From $0.670392 / $3.35196; range up to $2 / $10	5	Up to about 66.5% off	Compare Sonnet 5.5

At current starting prices, 4.6 has the lower token cost here even though 5.5 has the lower official Standard rate. Your route quote matters more than inferring the final bill from version names.

Sonnet 4.6 prices: Anthropic Standard, Batch and discounted API

Anthropic's pricing page lists Standard Sonnet 4.6 at $3 input / $15 output. A 50% Batch discount gives $1.50 / $7.50 with separate asynchronous conditions.

Access option	Input / output per 1M tokens	Billing condition	Saving at APIMaster's lowest quote
APIMaster Sonnet 4.6	$0.540468 / $2.70234	Public route; check supported features	—
Anthropic Standard	$3 / $15	Standard uncached	About 82% lower token rates
Anthropic Batch	$1.50 / $7.50	Asynchronous batch processing	About 64% lower token rates

Prompt caching changes the comparison: official Sonnet 4.6 cache reads are **$0.30/M**, below the displayed APIMaster uncached input starting rate. Five-minute writes cost $3.75/M and one-hour writes $6/M. Check the selected route's cache prices and actual hit rate before forecasting savings for repeated repository prompts.

What does a Sonnet 4.6 coding budget cost?

The following arithmetic uses the lowest checked uncached rates. Output means billed output, including any applicable thinking tokens. It excludes tools, cache, taxes and retries.

Example workload	Token budget per task	Anthropic Standard / task	APIMaster from / task	APIMaster / 1,000 tasks
Small review	10,000 input + 2,000 output	$0.06	$0.010809	$10.81
Repository analysis	100,000 input + 20,000 output	$0.60	$0.108094	$108.09
Ten-call agent session	Ten calls at the preceding budget	$6.00	$1.080936	$1,080.94

Formula: `input tokens × input rate / 1,000,000 + billed output tokens × output rate / 1,000,000`. These are example workloads, not observed performance results. Set a per-run budget and record every model call: a cheap first response does not cap the cost of the entire agent session.

Sonnet 4.6 vs Sonnet 5.5 vs Opus 4.8: which is cheaper?

For a fixed budget of 100,000 input + 20,000 output tokens, current APIMaster starting costs are:

Model	Calculated cost / task	Buying consideration
Sonnet 4.6	$0.108094	Evaluate a lower-cost route for existing 4.6 workloads
Opus 4.8	$0.128917	About $0.020823 more at the same token count
Sonnet 5.5	$0.134078	Evaluate the newer version against your acceptance tests

Token counts and success rates can differ across models. Anthropic notes that Claude 4.7 and later use a newer tokenizer, while Sonnet 4.6 uses the previous one. Do not read this fixed-token table as a measured cost-per-completed-task ranking. See the separate [Sonnet 5.5 guide](https://apimaster.ai/blog/cheap-claude-sonnet-api) and [Opus 4.8 guide](https://apimaster.ai/blog/cheap-claude-opus-4-8-api) for their buying details.

How to get a cheap Sonnet 4.6 API key

Compare Sonnet 4.6 routes → register → fund your wallet → create an API key. Use API base https://apimaster.ai/v1 and model claude-sonnet-4-6:

curl "https://apimaster.ai/v1/chat/completions" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-sonnet-4-6","messages":[{"role":"user","content":"Find the smallest safe fix for this bug and list the tests to run."}]}'

For Claude Code, follow the client setup guide and choose a client-compatible route. The 13 ordinary API listings above do not count client-exclusive offers or include a Claude Pro/Max subscription. Verify streaming, tools and limits on the route you intend to use.

FAQ

How much is the cheapest Sonnet 4.6 API quote?

From $0.540468 input / $2.70234 output per million tokens across 13 public routes at the November 9 check. The maximum saving is about 82% against Standard uncached rates; prices can change.

Is discounted API access the same as a Claude subscription?

No. This is metered API usage funded through your APIMaster wallet. Claude subscription limits and balances are separate.

Is Sonnet 4.6 always cheaper than Opus 4.8?

The current starting token rates are lower, but total cost depends on tokens, retries and accepted results. Test the same real task on both if quality requirements differ.

Can I keep the exact Sonnet 4.6 model version?

Use claude-sonnet-4-6 and check the route's model mapping and verification records. Choosing a newer Sonnet ID changes the version and may change price and behavior.

Get the current Sonnet 4.6 offer: open the model card → register → create a key → https://apimaster.ai/v1 + claude-sonnet-4-6.

Same-model platform prices: APIMaster vs OpenRouter and Vercel.

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