claude-sonnet-4-6

Claude Sonnet 4.6 API — price per token

Claude Sonnet 4.6 is the previous-generation balanced model — a proven workhorse for coding and production pipelines. Sonnet 5 is cheaper at $2/$10.

Pricing per 1M tokens

RateOfficial AnthropicHere (−50%)
Input$3$1.5
Output$15$7.5
Cache read$0.3$0.15
Cache write (5m)$3.75$1.875

Input

Official Anthropic
$3
Here (−50%)
$1.5

Output

Official Anthropic
$15
Here (−50%)
$7.5

Cache read

Official Anthropic
$0.3
Here (−50%)
$0.15

Cache write (5m)

Official Anthropic
$3.75
Here (−50%)
$1.875

Every request is metered at the official rate first, then the flat 50% B2C discount is subtracted before it touches your prepaid balance. Context window: 200K tokens. Max output: 128K tokens.

Best for

  • Pipelines tuned and evaluated against Sonnet 4.6.
  • Balanced coding and content workloads.
  • Teams migrating gradually to Sonnet 5.

Good to know

  • Sonnet 5 is cheaper at $2/$10 — new projects should usually start on claude-sonnet-5.
  • Supports adaptive thinking; effort defaults to high.
  • Context is 200K tokens on this endpoint. Anthropic returns a long-context rate_limit_error above roughly 200K on this model, so a longer document belongs on claude-sonnet-5 or claude-opus-4-6 — both answer the same document here (measured 2026-08-29).

How to use Claude Sonnet 4.6

Create a free account, generate one key, and point any Anthropic-compatible tool at https://router.apitoken.sale with model ID claude-sonnet-4-6. Eligible new accounts include $5 of platform bonus credit — enough to test the model before topping up. Existing integrations on the legacy host https://api.apitoken.sale keep working.

Frequently asked questions

How much does the Claude Sonnet 4.6 API cost?

Officially $3 per 1M input tokens and $15 per 1M output tokens. With the flat 50% apiToken.sale discount that is $1.50/$7.50.

Sonnet 4.6 or Sonnet 5?

They do not share a list price: Sonnet 5 is $2/$10, Sonnet 4.6 is $3/$15. Sonnet 5 is also stronger on coding and agentic work — prefer it for new projects. Stay on 4.6 when your prompts and evals are pinned to it.

How large a document can I send to Sonnet 4.6?

About 200K input tokens. Above that Anthropic answers a long-context rate_limit_error on this model, and no retry helps. Send longer documents to claude-sonnet-5 or claude-opus-4-6. Note that the same text counts about 35% more tokens on Sonnet 5 than on 4.6, because the newer generation uses a different tokenizer.

Can I switch models without a new key?

Yes. One key and one prepaid balance cover every supported Claude and GPT model — switching is a model-ID and endpoint change.

Run Claude Sonnet 4.6 on the same Anthropic API at a flat 50% off — instant key, prepaid balance, card or crypto.