Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Body Builder (beta) vs Claude Fable 5 benchmark

Name: Body Builder (beta) vs Claude Fable 5 AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Body Builder (beta) (openrouter) and Claude Fable 5 (Anthropic) using the latest snapshots we have as of Aug 17, 2026. Body Builder (beta) wins on output price at $-1,000,000/1M. Claude Fable 5 has the larger context window (1M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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openrouter

Body Builder (beta)

Auto-discovered from OpenRouter (openrouter/bodybuilder). Preview until a second source matches.

$-1000000/1M out

Anthropic

Claude Fable 5

Anthropic top-tier long-horizon model. Official API $10/$50 per 1M tokens (Claude Platform pricing, Aug 2026).

Elo 1,616$50/1M out

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Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Body Builder (beta) (2)vsClaude Fable 5 (8)

Body Builder (beta): 2W (20%)Overall: Claude Fable 5Claude Fable 5: 8W (80%)

← Body Builder (beta)Claude Fable 5 →

Claude Fable 5 (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

—vs1,616

Coding Elo

—vs1,622

SWE-bench

—vs80%

LiveBench

—vs75.2%

GPQA Diamond

—vs87.6%

Body Builder (beta): 0WClaude Fable 5: 5W

Claude Fable 5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

—vs58 tok/s

Time to first token

—vs340 ms

Body Builder (beta): 0WClaude Fable 5: 2W

Body Builder (beta) (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$-1,000,000/1Mvs$50/1M

Input price

$-1,000,000/1Mvs$10/1M

Context window

128kvs1M

Body Builder (beta): 2WClaude Fable 5: 1W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageClaude Fable 5 5/6

Preference Elo

No shared data

Throughput Speed

No shared data

Price Efficiency

Body Builder (beta)

$1000050.00/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

—

EloHigh is better

1,616

Code Elo

High is better

—

Code EloHigh is better

1,622

LiveBench

High is better

—

LiveBenchHigh is better

75.2%

SWE-bench

High is better

—

SWE-benchHigh is better

80%

GPQA

High is better

—

GPQAHigh is better

87.6%

TTFT

Low is better

—

TTFTLow is better

340 ms

Speed

High is better

—

SpeedHigh is better

58 tok/s

In $

Low is better

$-1,000,000/1M

In $Low is better

$10/1M

Out $

Low is better

$-1,000,000/1M

Out $Low is better

$50/1M

Context

High is better

128k

ContextHigh is better

1M+681%

Key Selection Recommendations

1
Body Builder (beta):Pick Body Builder (beta) when you are optimizing output cost.
2
Claude Fable 5:Pick Claude Fable 5 for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatBody Builder (beta)

Lower output list price ($-1,000,000/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGClaude Fable 5

Larger window (1M).

Screenshots / visionClaude Fable 5

Claude Fable 5 is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	Body Builder (beta)	Lower output list price ($-1,000,000/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	Claude Fable 5	Larger window (1M).
Screenshots / vision	Claude Fable 5	Claude Fable 5 is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news

launchJun 15, 2026

Claude Fable 5: the $10/$50 long-horizon Anthropic SKU

Fable 5 is not Sonnet with extra adjectives. It is the expensive long-horizon row. Read SWE-bench and output price together.

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LIVE

openrouter

Body Builder (beta)

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost$-1,000,000/1M

Anthropic

Claude Fable 5

Elo 1,616

LiveBench75.2%

SWE-bench80%

Speed58 tok/s

Output cost$50/1M

Frequently Asked Questions

Which is better overall, Body Builder (beta) or Claude Fable 5?: We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Body Builder (beta) or Claude Fable 5?: SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?: Body Builder (beta) output tokens are $-1,000,000/1M versus $50/1M. Input prices and retry rates still move the real bill.
Which is faster, Body Builder (beta) or Claude Fable 5?: We do not have TTFT for both models.
Which has the larger context window?: Claude Fable 5 accepts 1M tokens versus 128k.
Can I self-host either model?: Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Body Builder (beta) and Claude Fable 5 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Body Builder (beta) matchups →|All Claude Fable 5 matchups →

Claude Opus 4.5 vs Claude Fable 5 Claude Opus 4.6 vs Claude Fable 5 Claude Sonnet 4.5 vs Claude Fable 5 Claude Opus 5 vs Claude Fable 5 Claude Opus 4.8 vs Claude Fable 5 Claude Sonnet 5 vs Claude Fable 5

Body Builder (beta) vs Claude Fable 5 benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Body Builder (beta) (2)vsClaude Fable 5 (8)

Body Builder (beta): 2W (20%)Overall: Claude Fable 5Claude Fable 5: 8W (80%)

← Body Builder (beta)Claude Fable 5 →

Claude Fable 5 (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

—vs1,616

Coding Elo

—vs1,622

SWE-bench

—vs80%

LiveBench

—vs75.2%

GPQA Diamond

—vs87.6%

Body Builder (beta): 0WClaude Fable 5: 5W

Claude Fable 5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

—vs58 tok/s

Time to first token

—vs340 ms

Body Builder (beta): 0WClaude Fable 5: 2W

Body Builder (beta) (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$-1,000,000/1Mvs$50/1M

Input price

$-1,000,000/1Mvs$10/1M

Context window

128kvs1M

Body Builder (beta): 2WClaude Fable 5: 1W

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatBody Builder (beta)

Lower output list price ($-1,000,000/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGClaude Fable 5

Larger window (1M).

Screenshots / visionClaude Fable 5

Claude Fable 5 is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	Body Builder (beta)	Lower output list price ($-1,000,000/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	Claude Fable 5	Larger window (1M).
Screenshots / vision	Claude Fable 5	Claude Fable 5 is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Body Builder (beta) or Claude Fable 5?

We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.

Which is better at coding, Body Builder (beta) or Claude Fable 5?

SWE-bench is missing for at least one model, so we do not rank coding from a single number.

Which is cheaper to run in production?

Body Builder (beta) output tokens are $-1,000,000/1M versus $50/1M. Input prices and retry rates still move the real bill.

Which is faster, Body Builder (beta) or Claude Fable 5?

We do not have TTFT for both models.

Which has the larger context window?

Claude Fable 5 accepts 1M tokens versus 128k.

Can I self-host either model?

Neither model is marked open-weights here. You are comparing hosted APIs.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Body Builder (beta) and Claude Fable 5 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

No shared data

No shared data

Body Builder (beta)

Full Benchmark Score Matrix

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Claude Fable 5: the $10/$50 long-horizon Anthropic SKU

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Body Builder (beta)

Claude Fable 5

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

No shared data

No shared data

Body Builder (beta)

Full Benchmark Score Matrix

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Claude Fable 5: the $10/$50 long-horizon Anthropic SKU

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Body Builder (beta)

Claude Fable 5

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons