ARCHIVE PRICERETIRED MODEL200KTEXT + VISIONNO CACHE SKU
Claude 3 Sonnet API Pricing
Claude 3 Sonnet is retired; this archive preserves the original Sonnet $3/$15 price band. $3/M input, $15/M output. Use it for old invoices, migration math, and historical comparisons against newer Sonnet releases.
Archived input - per 1M tokens
$3.00/M
Source Anthropic retired
Archived output - per 1M tokens
$15.00/M
Use for invoice checks retired
Cached input
$3.00/M
Cache no separate SKU not listed
Effective - agentic blend
$3.96/M
92/8 split - 82% cache
§ 01 / TERMINAL
Run the numbers.
Archive calculator pre-loaded with Claude 3 Sonnet rates. Tweak spend, output mix, or cache hit rate to compare legacy bills with current replacements.
$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
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Words equivalent (English)
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Effective rate
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§ 02 / SCENARIOS
Real-world presets.
CODING AGENT ARCHIVE
Repo-wide bug fix
$0.348/task
LONG DOC ANALYSIS
Reading 100-page contracts
$0.645/doc
RAG SUPPORT
Support agent ticket triage
$0.027/ticket
ASSISTANT TURN
Research planning turn
$0.066/turn
§ 03 / TAPE
Price history.
Input · $3/M
Output · $15/M
Cached · $3/M
MAR 04 Launch at $3/M input and $15/M outputMAY 18 Retired on July 21, 2025; replacement is Claude Sonnet 4.6
§ 04 / TOKENIZER
Paste text. See tokens. See cost.
Estimate · anthropic-bpe-estimate · ≈3.5 chars/token Auto-counts as you type
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
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Cost as input · uncached —
Cost as output · uncached —
Cost as cached input —
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Claude Sonnet 3 | $3.00 cache $3.00 | $15.00 | $3.96 current page | 200K | Legacy Claude production baselines |
| Claude Sonnet 4.6 | $3.00 cache $0.30 | $15.00 | $1.92 cheaper | 1M | Legacy Claude production baselines |
| Claude Haiku 4.5 | $1.00 cache $0.10 | $5.00 | $0.64 cheaper | 200K | Low-cost Claude archive checks |
| Claude Opus 4.7 | $5.00 cache $0.50 | $25.00 | $3.21 cheaper | 1M | Current replacement workloads |
| GPT-5.4 | $2.50 cache $0.25 | $15.00 | $1.80 cheaper | 1.05M | Current replacement workloads |
| Gemini 2.5 Pro | $1.25 cache $0.13 | $10.00 | $1.10 cheaper | 2M | Gemini long-context work |
| DeepSeek V4 Pro | $0.43 cache $0.00 | $0.87 | $0.14 cheaper | 1M | Low-cost reasoning and coding |
Frequently asked.
Short answers for teams checking Claude 3 Sonnet pricing, status, and migration choices.
Q · 01 Is Claude 3 Sonnet still available? +
No. This is a retired model page kept for pricing history and invoice reconciliation.
Q · 02 How much did Claude 3 Sonnet cost? +
Claude 3 Sonnet is listed here at $3/M input and $15/M output.
Q · 03 Is cached-input pricing included? +
No separate cache discount was listed in the source used for this archive, so the calculator treats cached input as undiscounted.
Q · 04 What should teams use instead? +
For new work, compare against
claude-sonnet-4-6 and other current rows in the shelf.Q · 05 Why keep this archive page? +
Archive pages preserve old price baselines, help explain invoice history, and capture migration search demand without implying the model is the best current choice.