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

Anthropic: Claude Fable Latest vs GPT-5.6 Sol benchmark

Name: Anthropic: Claude Fable Latest vs GPT-5.6 Sol AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Anthropic: Claude Fable Latest (~anthropic) and GPT-5.6 Sol (OpenAI) using the latest snapshots we have as of Aug 17, 2026. GPT-5.6 Sol wins on output price at $30/1M. GPT-5.6 Sol has the larger context window (1.1M 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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~anthropic

Anthropic: Claude Fable Latest

Auto-discovered from OpenRouter (~anthropic/claude-fable-latest). Preview until a second source matches.

$50/1M out

OpenAI

GPT-5.6 Sol

OpenAI 5.6 flagship tier. Official API $5/$30 per 1M tokens (OpenAI pricing, Jul 30 2026 update left Sol unchanged).

Elo 1,608$30/1M out

GPT-5.6 Sol Inference Compute Profile

Inference-Time Compute & Reasoning EffortDynamic CoT

GPT-5.6 Sol Reasoning Scaler & Token Billing Simulator

Param: reasoning_effort

Reasoning models scale test-time compute by generating hidden chain-of-thought (CoT) tokens. These tokens are billed at standard output rates and directly expand latency (TTFT) in exchange for higher GPQA Diamond and SWE-bench Verified problem resolve rates.

Estimated TTFT

270 ms

1.0x (Standard eval)

CoT Thinking Tokens

~1,500

Billed as output tokens

Est. Cost / 1k Calls

$56.50

4.9x base invoice

STEM / SWE Boost

+4.5%

GPQA & SWE-bench scaling

Medium (Standard) Operational Profile

Default evaluation baseline balancing reasoning depth with stream rate.

Direct Provider APIOpenAI

"reasoning_effort": "medium"

OpenRouter Unified APIUnified Gateway

"reasoning": {
  "effort": "medium",
  "max_tokens": 1500
}

Swap or Add Any Model to this Matchup

Instant pairwise benchmark recalculation across 400+ LLMs

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.

Anthropic: Claude Fable Latest (0)vsGPT-5.6 Sol (10)

Anthropic: Claude Fable Latest: 0W (0%)Overall: GPT-5.6 SolGPT-5.6 Sol: 10W (100%)

← Anthropic: Claude Fable LatestGPT-5.6 Sol →

GPT-5.6 Sol (5/5)

Intelligence & Reasoning

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

Preference Elo

—vs1,608

Coding Elo

—vs1,602

SWE-bench

—vs77.6%

LiveBench

—vs73.9%

GPQA Diamond

—vs86.8%

Anthropic: Claude Fable Latest: 0WGPT-5.6 Sol: 5W

GPT-5.6 Sol (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

—vs84 tok/s

Time to first token

—vs270 ms

Anthropic: Claude Fable Latest: 0WGPT-5.6 Sol: 2W

GPT-5.6 Sol (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$50/1Mvs$30/1M

Input price

$10/1Mvs$5/1M

Context window

1Mvs1.1M

Anthropic: Claude Fable Latest: 0WGPT-5.6 Sol: 3W

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 AdvantageGPT-5.6 Sol 6/6

Preference Elo

No shared data

Throughput Speed

No shared data

Token Price Efficiency

GPT-5.6 Sol

$20.00/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

—

EloHigh is better

1,608

Code Elo

High is better

—

Code EloHigh is better

1,602

LiveBench

High is better

—

LiveBenchHigh is better

73.9%

SWE-bench

High is better

—

SWE-benchHigh is better

77.6%

GPQA

High is better

—

GPQAHigh is better

86.8%

TTFT

Low is better

—

TTFTLow is better

270 ms

Speed

High is better

—

SpeedHigh is better

84 tok/s

In $

Low is better

$10.00 / 1M

In $Low is better

$5.00 / 1M+100%

Out $

Low is better

$50.00 / 1M

Out $Low is better

$30.00 / 1M+67%

Context

High is better

ContextHigh is better

1.1M+5%

Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 43% with GPT-5.6 Sol

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

Anthropic: Claude Fable Latest$1,100.00 / mo

In: $350Out: $750

GPT-5.6 Sol$625.00 / mo

In: $175Out: $450

Estimated Cost Delta

GPT-5.6 Sol is estimated to save $475.00/month ($5,700/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
GPT-5.6 Sol:Pick GPT-5.6 Sol when you are optimizing output cost.
2
GPT-5.6 Sol:Pick GPT-5.6 Sol for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGPT-5.6 Sol

Lower output list price ($30/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-5.6 Sol

Larger window (1.1M).

Screenshots / visionGPT-5.6 Sol

GPT-5.6 Sol 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	GPT-5.6 Sol	Lower output list price ($30/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	GPT-5.6 Sol	Larger window (1.1M).
Screenshots / vision	GPT-5.6 Sol	GPT-5.6 Sol is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news

compareAug 12, 2026

Grok vs ChatGPT: price and Elo, not a personality contest

Brand hub remaps to top xAI vs top OpenAI. After Aug 12 that is Grok 4.6 vs Sol.

compareJul 24, 2026

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Not a frozen 2025 article. Today that is usually Opus 5 vs GPT-5.6 Sol. Dated cells, not a brand fight.

compareJul 16, 2026

Gemini vs GPT: long context versus the OpenAI flagship invoice

Hub remaps to top Google vs top OpenAI Elo. Usually 3.6 Pro vs Sol. Window vs price is the plot.

launchJul 9, 2026

GPT-5.6 Sol: OpenAI’s $5/$30 flagship tier on this leaderboard

Jul 9 2026 family; Jul 30 price update left Sol unchanged. This is the GPT side of Claude vs GPT.

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LIVE

~anthropic

Anthropic: Claude Fable Latest

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost$50/1M

OpenAI

GPT-5.6 Sol

Elo 1,608

LiveBench73.9%

SWE-bench77.6%

Speed84 tok/s

Output cost$30/1M

Frequently Asked Questions

Which is better overall, Anthropic: Claude Fable Latest or GPT-5.6 Sol?: 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, Anthropic: Claude Fable Latest or GPT-5.6 Sol?: 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?: GPT-5.6 Sol output tokens are $30/1M versus $50/1M. Input prices and retry rates still move the real bill.
Which is faster, Anthropic: Claude Fable Latest or GPT-5.6 Sol?: We do not have TTFT for both models.
Which has the larger context window?: GPT-5.6 Sol accepts 1.1M tokens versus 1M.
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. Anthropic: Claude Fable Latest and GPT-5.6 Sol Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Anthropic: Claude Fable Latest matchups →|All GPT-5.6 Sol matchups →

GPT-5.6 Sol vs GPT-5 (previous gpt-flagship)GPT-4.5 Orion vs GPT-5.6 Sol GPT-5.6 Terra vs GPT-5.6 Sol GPT-5 mini vs GPT-5.6 Sol GPT-4o vs GPT-5.6 Sol GPT-4o mini vs GPT-5.6 Sol

Anthropic: Claude Fable Latest vs GPT-5.6 Sol benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Anthropic: Claude Fable Latest (0)vsGPT-5.6 Sol (10)

Anthropic: Claude Fable Latest: 0W (0%)Overall: GPT-5.6 SolGPT-5.6 Sol: 10W (100%)

← Anthropic: Claude Fable LatestGPT-5.6 Sol →

GPT-5.6 Sol (5/5)

Intelligence & Reasoning

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

Preference Elo

—vs1,608

Coding Elo

—vs1,602

SWE-bench

—vs77.6%

LiveBench

—vs73.9%

GPQA Diamond

—vs86.8%

Anthropic: Claude Fable Latest: 0WGPT-5.6 Sol: 5W

GPT-5.6 Sol (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

—vs84 tok/s

Time to first token

—vs270 ms

Anthropic: Claude Fable Latest: 0WGPT-5.6 Sol: 2W

GPT-5.6 Sol (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$50/1Mvs$30/1M

Input price

$10/1Mvs$5/1M

Context window

1Mvs1.1M

Anthropic: Claude Fable Latest: 0WGPT-5.6 Sol: 3W

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGPT-5.6 Sol

Lower output list price ($30/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-5.6 Sol

Larger window (1.1M).

Screenshots / visionGPT-5.6 Sol

GPT-5.6 Sol 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	GPT-5.6 Sol	Lower output list price ($30/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	GPT-5.6 Sol	Larger window (1.1M).
Screenshots / vision	GPT-5.6 Sol	GPT-5.6 Sol is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Anthropic: Claude Fable Latest or GPT-5.6 Sol?

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, Anthropic: Claude Fable Latest or GPT-5.6 Sol?

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?

GPT-5.6 Sol output tokens are $30/1M versus $50/1M. Input prices and retry rates still move the real bill.

Which is faster, Anthropic: Claude Fable Latest or GPT-5.6 Sol?

We do not have TTFT for both models.

Which has the larger context window?

GPT-5.6 Sol accepts 1.1M tokens versus 1M.

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. Anthropic: Claude Fable Latest and GPT-5.6 Sol Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

GPT-5.6 Sol Reasoning Scaler & Token Billing Simulator

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

GPT-5.6 Sol

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Grok vs ChatGPT: price and Elo, not a personality contest

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Gemini vs GPT: long context versus the OpenAI flagship invoice

GPT-5.6 Sol: OpenAI’s $5/$30 flagship tier on this leaderboard

Cast Your Matchup Vote

Community Discussions (0)

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CompareLLM Matrix

Anthropic: Claude Fable Latest

GPT-5.6 Sol

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

GPT-5.6 Sol Reasoning Scaler & Token Billing Simulator

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

GPT-5.6 Sol

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Grok vs ChatGPT: price and Elo, not a personality contest

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Gemini vs GPT: long context versus the OpenAI flagship invoice

GPT-5.6 Sol: OpenAI’s $5/$30 flagship tier on this leaderboard

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Anthropic: Claude Fable Latest

GPT-5.6 Sol

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons