Claude Fable 5.2 · Standard
Estimated monthly cost
Claude Fable 5.2 Standard $382.00 per month
USD per month at standard list rates
- Standard
- $382.00
- $8 in / $40 out
- Fast mode
- $764.00
- 2.00× standard · +$382.00
API cost calculator · Prices retrieved 2026-11-11
Claude Fable 5.2 Cost Calculator
Estimate your monthly Claude Fable 5.2 API bill at standard or Fast mode rates, with cache reads and both 5-minute and 1-hour cache writes priced out line by line. Then see how the total compares with Gemini 4 Carbon. No login, no server requests: the math runs in your browser.
Standard
base rates
$8.00 / $40.00
input / output per 1M tokens
Fast mode
2× standard
$16.00 / $80.00
input / output per 1M tokens
Prompt cache
standard rates
$0.20 read
$10.00 5-min write · $16.00 1-hr write
Instant estimate · Rates retrieved 2026-11-11
Monthly Fable 5.2 usage
Enter your expected monthly token volume and pick Standard or Fast mode. Cache reads and both cache-write durations are separate lines so nothing is billed twice. Rates are USD per 1 million tokens.
Vs Gemini 4 Carbon
USD per month- Carbon intro$91.00
- Carbon regular$182.00
- Fable 5.2 Standard$382.00
- Fable 5.2 Fast$764.00
For this mix, Fable 5.2 Standard costs $291.00 (4.20× the Carbon intro total) more per month than Gemini 4 Carbon at the introductory price, and $200.00 more than Carbon at the regular price from December 1, 2026.
Price comparison only, not a quality or capability claim. Carbon totals ignore Claude cache-write tokens because Carbon has no explicit cache-write fee; add them to uncached input on the Carbon calculator if you would send them as plain input there.
Breakdown
Each cell shows the monthly USD total and the per 1M token rate used. Fast mode cache rates are derived: official Fast mode input price times Anthropic's published cache multipliers.
| Line item | Monthly tokens | Standard · selected | Fast mode |
|---|---|---|---|
| Uncached input (base) | 20M | $160.00 $8.00 / 1M tokens | $320.00 $16.00 / 1M tokens |
| Cache reads (hits and refreshes) | 10M | $2.00 $0.20 / 1M tokens | $4.00 $0.40 / 1M tokens (derived) |
| 5-minute cache writes | 2M | $20.00 $10.00 / 1M tokens | $40.00 $20.00 / 1M tokens (derived) |
| 1-hour cache writes | 0 | $0.00 $16.00 / 1M tokens | $0.00 $32.00 / 1M tokens (derived) |
| Output | 5M | $200.00 $40.00 / 1M tokens | $400.00 $80.00 / 1M tokens |
| Monthly total | — | $382.00 | $764.00 |
1M tokens = 1,000,000 tokens. No Batch API, data-residency, or partner-cloud adjustments are applied.
Prompt caching
Cache reads and writes
A cache write costs more than sending the tokens once, and every later read costs a fraction of normal input. Fast mode scales all of these rates by 2×, so the break-even point is the same.
5-minute cache
Write = 1.25× base input · $10.00 / 1M tokens
1 read
to pay back the write. The write adds $2.00 per 1M tokens over plain input, and each read saves $7.80 per 1M tokens.
1-hour cache
Write = 2× base input · $16.00 / 1M tokens
2 reads
to pay back the write. The write adds $8.00 per 1M tokens over plain input, and each read saves $7.80 per 1M tokens.
Cache reads (hits and refreshes) are billed at 0.025× the base input price on Claude Fable 5.2, which is $0.20 per 1M tokens at standard rates.
Official list rates
Per 1 million tokens
Paid API list rates used by this calculator, copied from Anthropic's public pricing page on 2026-11-11. Units are USD per 1 million tokens.
| Claude Fable 5.2 | Standard | Fast mode | Basis |
|---|---|---|---|
| Base input | $8.00 | $16.00 | Official |
| Output | $40.00 | $80.00 | Official |
| Cache reads (hits and refreshes) | $0.20 | $0.40 (derived) | 0.025× base input |
| 5-minute cache writes | $10.00 | $20.00 (derived) | 1.25× base input |
| 1-hour cache writes | $16.00 | $32.00 (derived) | 2× base input |
Sources: platform.claude.com pricing and Fable 5.2 what's new. Fast mode input and output dollar amounts are official. Fast mode cache rates marked "derived" are not printed as dollar amounts; they are the official Fast mode input price times the official cache multipliers. Retrieved 2026-11-11.
FAQ
Common questions
How much does Claude Fable 5.2 cost per million tokens?
On Anthropic's published API pricing, Claude Fable 5.2 standard rates are $8.00 per 1 million (MTok) base input tokens and $40.00 per MTok of output. Prompt caching: $10.00 per MTok for 5-minute cache writes, $16.00 per MTok for 1-hour cache writes, and $0.20 per MTok for cache hits and refreshes (0.025× the base input price). These are list prices as retrieved on 2026-11-11.
What does Claude Fable 5.2 Fast mode cost?
Fast mode is $16.00 per MTok for input and $80.00 per MTok for output, exactly twice the standard rates, and the pricing applies across the full context window. Anthropic states that prompt caching multipliers apply on top of Fast mode pricing, so this calculator derives Fast mode cache rates as $0.40 for cache reads (0.025 × $16.00), $20.00 for 5-minute writes (1.25×) and $32.00 for 1-hour writes (2×). Those three dollar figures are derived, not printed as separate amounts on Anthropic's pricing table. Fast mode is not available with the Batch API.
How do I calculate my monthly Claude Fable 5.2 API cost?
Multiply each token type by its rate per million and add them up: uncached input × $8.00, output × $40.00, cache reads × $0.20, 5-minute cache writes × $10.00, and 1-hour cache writes × $16.00 (all per million tokens, standard mode). Enter cache reads and cache writes as separate fields from uncached input so cached tokens are not billed twice. Switch to Fast mode to see the same usage at twice the cost.
When does prompt caching pay off on Claude Fable 5.2?
A cache write costs more than sending the same tokens uncached once, and each later cache read costs far less. On Fable 5.2, a 5-minute write adds 0.25× the base input price and a 1-hour write adds 1× the base input price, while every cache read saves 0.975× the base input price. So a 5-minute cache pays for itself after one read and a 1-hour cache after two reads, in both standard and Fast mode.
Is Claude Fable 5.2 cheaper or more expensive than Gemini 4 Carbon?
This site compares list prices only, not quality. At standard rates Fable 5.2 is $8.00 input and $40.00 output per MTok. Gemini 4 Carbon is $2 input and $10 output per MTok through November 30, 2026, and $4 and $20 from December 1, 2026. The calculator above shows both Carbon totals next to Fable 5.2 Standard and Fast mode for the usage you enter, and the Gemini 4 Carbon cost calculator on the homepage covers the Carbon side in more detail.
What does this Claude Fable 5.2 calculator not include?
Batch API (50% off standard rates), the 1.1× US data-residency multiplier, partner-cloud pricing (Amazon Bedrock, Google Cloud, Microsoft Foundry set their own prices), server-tool fees such as web search, taxes, and negotiated enterprise discounts are not modeled. Rates can change; check Anthropic's pricing page before you spend.
Is this Claude Fable 5.2 cost calculator official?
No. This is an unofficial, independent calculator that is not affiliated with, endorsed by, or sponsored by Anthropic. It runs entirely in your browser and uses list prices copied from Anthropic's public documentation on 2026-11-11. Totals are estimates, not quotes or invoices.
Official references: Claude API pricing, Fable 5.2 what's new, and the Gemini 4 Carbon calculator. Unofficial; not affiliated with Anthropic.