Home / Anthropic / Claude Fable 5.1

Claude Fable 5.1

Claude Fable 5.1 is developed by Anthropic, released 2026-09-01.

Model ID: claude-fable-5-1

Input price
$10.00 / 1M tok
Output price
$50.00 / 1M tok
Blended price
$20.00 / 1M tok
Epoch Capabilities Index (ECI)
166.9
96th percentile of 107 models with an Epoch Capabilities Index (ECI) score
Epoch AI · as of 2026-09-01
Epoch Mock AIME accuracy
100.0%
Epoch AI · as of 2026-09-01
Epoch FrontierMath (T1–3) accuracy
90.2%
Epoch AI · as of 2026-09-01
Arena text rating
1503.7
98th percentile of 164 models with an Arena text rating score
LMArena · as of 2026-11-06
Arena coding rating (human preference votes, not task accuracy)
1536.3
LMArena · as of 2026-11-06
Arena math rating
1523.5
LMArena · as of 2026-11-06
Arena WebDev rating
1745.7
LMArena · as of 2026-11-06

LiveBench

Shown here only — LiveBench scores never appear in any list, table, chart, search result or JSON-LD elsewhere on this site (see data sources).

LiveBench metricValueAs of
LiveBench Global Average83.42026-06-25
LiveBench Reasoning91.72026-06-25
LiveBench Coding86.42026-06-25
LiveBench Agentic Coding66.12026-06-25
LiveBench Mathematics97.02026-06-25
LiveBench Data Analysis80.32026-06-25
LiveBench Language89.52026-06-25
LiveBench Instruction Following73.02026-06-25

LiveBench leaderboard (livebench.ai, github.com/LiveBench/new-livebench), release 2026-06-25, CC BY-SA 4.0 — livebench.ai · github.com/LiveBench/new-livebench

Third-party resale listings

Captured 2026-11-06 from the reseller marketplace subrouter.ai's public pricing list. These are third-party resale prices, not Anthropic's official price. Many resellers use shared/subscription access or reverse-engineered integrations — availability and quality are not verified by this site. Prices are USD per 1M tokens. Reseller names are the marketplace's own listing IDs, not company names — none of them is Anthropic or any other model developer.

21 resellers passed our sanity checks against Anthropic's official price; cheapest trusted price $3.2353/1M blended.

Reseller (marketplace ID)Input $/1MOutput $/1MBlended $/1Mvs. official
fxpayback 0.1982 0.9912 0.3965 2% Likely subscription-resale / reverse-engineered
Kriora 0.1993 0.9965 0.3986 2% Likely subscription-resale / reverse-engineered
RelAI 0.2265 1.1324 0.4529 2% Likely subscription-resale / reverse-engineered
xcgx 0.2265 1.1324 0.4529 2% Likely subscription-resale / reverse-engineered
laoliu 0.2279 1.1397 0.4559 2% Likely subscription-resale / reverse-engineered
manxueai 0.2279 1.1397 0.4559 2% Likely subscription-resale / reverse-engineered
ydjs-ai 0.3529 1.7647 0.7059 4% Likely subscription-resale / reverse-engineered
TokenX 0.3676 1.8382 0.7353 4% Likely subscription-resale / reverse-engineered
o2oai 0.3676 1.8382 0.7353 4% Likely subscription-resale / reverse-engineered
x-loop 0.3824 1.9118 0.7647 4% Likely subscription-resale / reverse-engineered
a6aa 0.3882 1.9412 0.7765 4% Likely subscription-resale / reverse-engineered
FoxRouter 0.4202 2.1008 0.8403 4% Likely subscription-resale / reverse-engineered
GETAPI 0.8529 4.2647 1.7059 9%
Cybersol 1.6176 8.0882 3.2353 16%
mixmix123 1.7647 8.8235 3.5294 18%
CCAI 2.6471 13.2353 5.2941 26%
altmancode 5.00 25.00 10.00 50%
EaseLink AI 5.00 25.00 10.00 50%
MijiaAI 5.00 25.00 10.00 50%
xl-ai 5.50 27.50 11.00 55%
ModelPort AI 5.50 27.50 11.00 55%

Resale listings: subrouter.ai public marketplace snapshot 2026-11-06.

Official list price from Anthropic, as recorded by models.dev. See the third-party resale listings above for reseller prices — those are not official and not verified by this site.

See all of Anthropic's models on its provider page, or browse the full model directory. Full source licenses and sync dates: /data-sources/.