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

Claude Opus 5 vs FLUX.1.1 [pro] benchmark

Name: Claude Opus 5 vs FLUX.1.1 [pro] AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Claude Opus 5 (Anthropic) and FLUX.1.1 [pro] (Black Forest Labs) using the latest snapshots we have as of Aug 17, 2026. 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

Claude Opus 5

Anthropic current default flagship. Official API $5/$25 per 1M tokens and a 1M context window (Anthropic, Jul 24 2026).

Elo 1,624$50/1M out

Black Forest Labs

FLUX.1.1 [pro]

First-generation professional API model from Black Forest Labs, renowned for 6x faster generation than original FLUX.1 Pro.

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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.

Claude Opus 5 (10)vsFLUX.1.1 [pro] (0)

Claude Opus 5: 10W (100%)Overall: Claude Opus 5FLUX.1.1 [pro]: 0W (0%)

← Claude Opus 5FLUX.1.1 [pro] →

Claude Opus 5 (5/5)

Intelligence & Reasoning

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

Preference Elo

1,624vs—

Coding Elo

1,618vs—

SWE-bench

79.2%vs—

LiveBench

74.8%vs—

GPQA Diamond

87.1%vs—

Claude Opus 5: 5WFLUX.1.1 [pro]: 0W

Claude Opus 5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

72 tok/svs—

Time to first token

310 msvs—

Claude Opus 5: 2WFLUX.1.1 [pro]: 0W

Claude Opus 5 (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$50/1Mvs—

Input price

$10/1Mvs—

Context window

1Mvs—

Claude Opus 5: 3WFLUX.1.1 [pro]: 0W

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 AdvantageFLUX.1.1 [pro] 5/6

Preference Elo

No shared data

Throughput Speed

No shared data

Price Efficiency

No shared data

Full Benchmark Score Matrix

—

Elo

High is better

1,624

EloHigh is better

—

Code Elo

High is better

1,618

Code EloHigh is better

—

LiveBench

High is better

74.8%

LiveBenchHigh is better

—

SWE-bench

High is better

79.2%

SWE-benchHigh is better

—

GPQA

High is better

87.1%

GPQAHigh is better

—

TTFT

Low is better

310 ms

TTFTLow is better

—

Speed

High is better

72 tok/s

SpeedHigh is better

—

In $

Low is better

$10/1M

In $Low is better

—

Out $

Low is better

$50/1M

Out $Low is better

—

Context

High is better

ContextHigh is better

—

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatinsufficient data

Need list prices.

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGinsufficient data

Need context sizes.

Screenshots / visioninsufficient data

Both accept images. Defaulting to the higher-Elo side (undefined).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	insufficient data	Need list prices.
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	insufficient data	Need context sizes.
Screenshots / vision	insufficient data	Both accept images. Defaulting to the higher-Elo side (undefined).

Related Editorial Dispatches & Benchmark Notes

View all news

compareAug 10, 2026

Sonnet vs Opus in 2026: same family, different invoice

Usually Sonnet 5 vs Opus 5. Coding delta versus output $/1M. The workhorse question.

compareJul 24, 2026

Claude vs Gemini: coding, Elo, and output price — not a brand mashup

Top Anthropic vs top Google. Usually Opus 5 vs 3.6 Pro. Two different invoices.

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.

launchJul 24, 2026

Claude Opus 5 is Anthropic’s default flagship — how to read it on CompareLLM

Jul 24 2026 official API at $5/$25 and a 1M window. Preference Elo is taste, not a coding exam.

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LIVE

Anthropic

Claude Opus 5

Elo 1,624

LiveBench74.8%

SWE-bench79.2%

Speed72 tok/s

Output cost$50/1M

Black Forest Labs

FLUX.1.1 [pro]

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost—

Frequently Asked Questions

Which is better overall, Claude Opus 5 or FLUX.1.1 [pro]?: 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, Claude Opus 5 or FLUX.1.1 [pro]?: 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?: List prices are missing for at least one model.
Which is faster, Claude Opus 5 or FLUX.1.1 [pro]?: We do not have TTFT for both models.
Which has the larger context window?: Context window is missing for at least one model.
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. Claude Opus 5 and FLUX.1.1 [pro] Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Claude Opus 5 matchups →|All FLUX.1.1 [pro] matchups →

Claude Opus 5 vs Claude Opus 4.8 (previous opus)FLUX.1.1 [pro] vs FLUX.1 [schnell] (previous flux)FLUX.1.1 [pro] vs FLUX.2 [flex] (next flux)Claude Fable 5 vs Claude Opus 5 Claude Opus 4.6 vs Claude Opus 5 Claude Opus 4.5 vs Claude Opus 5

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Opus 5 (10)vsFLUX.1.1 [pro] (0)

Claude Opus 5: 10W (100%)Overall: Claude Opus 5FLUX.1.1 [pro]: 0W (0%)

← Claude Opus 5FLUX.1.1 [pro] →

Claude Opus 5 (5/5)

Intelligence & Reasoning

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

Preference Elo

1,624vs—

Coding Elo

1,618vs—

SWE-bench

79.2%vs—

LiveBench

74.8%vs—

GPQA Diamond

87.1%vs—

Claude Opus 5: 5WFLUX.1.1 [pro]: 0W

Claude Opus 5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

72 tok/svs—

Time to first token

310 msvs—

Claude Opus 5: 2WFLUX.1.1 [pro]: 0W

Claude Opus 5 (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$50/1Mvs—

Input price

$10/1Mvs—

Context window

1Mvs—

Claude Opus 5: 3WFLUX.1.1 [pro]: 0W

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatinsufficient data

Need list prices.

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGinsufficient data

Need context sizes.

Screenshots / visioninsufficient data

Both accept images. Defaulting to the higher-Elo side (undefined).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	insufficient data	Need list prices.
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	insufficient data	Need context sizes.
Screenshots / vision	insufficient data	Both accept images. Defaulting to the higher-Elo side (undefined).

Frequently Asked Questions

Which is better overall, Claude Opus 5 or FLUX.1.1 [pro]?

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, Claude Opus 5 or FLUX.1.1 [pro]?

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?

List prices are missing for at least one model.

Which is faster, Claude Opus 5 or FLUX.1.1 [pro]?

We do not have TTFT for both models.

Which has the larger context window?

Context window is missing for at least one model.

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. Claude Opus 5 and FLUX.1.1 [pro] 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

No shared data

Full Benchmark Score Matrix

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Sonnet vs Opus in 2026: same family, different invoice

Claude vs Gemini: coding, Elo, and output price — not a brand mashup

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

Claude Opus 5 is Anthropic’s default flagship — how to read it on CompareLLM

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Claude Opus 5

FLUX.1.1 [pro]

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

No shared data

Full Benchmark Score Matrix

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Sonnet vs Opus in 2026: same family, different invoice

Claude vs Gemini: coding, Elo, and output price — not a brand mashup

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

Claude Opus 5 is Anthropic’s default flagship — how to read it on CompareLLM

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Claude Opus 5

FLUX.1.1 [pro]

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons