Pairwise benchmark snapshot · Aug 16, 2026

Claude 3.7 Sonnet vs GPT-5.6 Sol benchmark

Name: Claude 3.7 Sonnet vs GPT-5.6 Sol AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Claude 3.7 Sonnet (Anthropic) and GPT-5.6 Sol (OpenAI) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, GPT-5.6 Sol is ahead by 246 points (1,608 vs 1,362; seed-bootstrap (Aug 16, 2026)). On SWE-bench coding, GPT-5.6 Sol resolves 77.6% versus 70.3% (seed-bootstrap (Aug 16, 2026)). Claude 3.7 Sonnet streams faster (85 tok/s) while Claude 3.7 Sonnet is the cheaper output token ($15/1M). 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

Claude 3.7 Sonnet

Hybrid-reasoning Sonnet from 2025. Kept for historical compare pages.

Elo 1,362$15/1M 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

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Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs GPT-5

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude 3.7 Sonnet (4)vsGPT-5.6 Sol (6)

Claude 3.7 Sonnet: 4W (40%)Overall: GPT-5.6 SolGPT-5.6 Sol: 6W (60%)

← Claude 3.7 SonnetGPT-5.6 Sol →

GPT-5.6 Sol (5/5)

Intelligence & Reasoning

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

Preference Elo

1,362vs1,608

Coding Elo

—vs1,602

SWE-bench

70.3%vs77.6%

LiveBench

58.4%vs73.9%

GPQA Diamond

78.5%vs86.8%

Claude 3.7 Sonnet: 0WGPT-5.6 Sol: 5W

Claude 3.7 Sonnet (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

85 tok/svs84 tok/s

Time to first token

240 msvs270 ms

Claude 3.7 Sonnet: 2WGPT-5.6 Sol: 0W

Claude 3.7 Sonnet (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$15/1Mvs$30/1M

Input price

$3/1Mvs$5/1M

Context window

200kvs1.1M

Claude 3.7 Sonnet: 2WGPT-5.6 Sol: 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 AdvantageGPT-5.6 Sol 4/6

Preference Elo

GPT-5.6 Sol

246 pts advantage

Throughput Speed

Claude 3.7 Sonnet

1 tok/s faster

Price Efficiency

Claude 3.7 Sonnet

$15.00/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

1,362

EloHigh is better

1,608+18%

Code Elo

High is better

—

Code EloHigh is better

1,602

LiveBench

High is better

58.4%

LiveBenchHigh is better

73.9%+27%

SWE-bench

High is better

70.3%

SWE-benchHigh is better

77.6%+10%

GPQA

High is better

78.5%

GPQAHigh is better

86.8%+11%

TTFT

Low is better

+13%240 ms

TTFTLow is better

270 ms

Speed

High is better

+1%85 tok/s

SpeedHigh is better

84 tok/s

In $

Low is better

+67%$3/1M

In $Low is better

$5/1M

Out $

Low is better

+100%$15/1M

Out $Low is better

$30/1M

Context

High is better

200k

ContextHigh is better

1.1M+425%

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 47% with Claude 3.7 Sonnet

Monthly Volume50M tokens/mo

Quick Presets:

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

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

Claude 3.7 Sonnet$330.00 / mo

In: $105.00Out: $225.00

GPT-5.6 Sol$625.00 / mo

In: $175.00Out: $450.00

Estimated Cost Delta

Claude 3.7 Sonnet is estimated to save $295.00/month ($3,540/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
GPT-5.6 Sol:Pick GPT-5.6 Sol when repo-level coding accuracy is the constraint.
2
Claude 3.7 Sonnet:Pick Claude 3.7 Sonnet when you are optimizing output cost.
3
Claude 3.7 Sonnet:Pick Claude 3.7 Sonnet when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsGPT-5.6 Sol

Higher SWE-bench (77.6%).

High-volume chatClaude 3.7 Sonnet

Lower output list price ($15/1M).

Voice / low-latency UIClaude 3.7 Sonnet

Lower TTFT (240 ms).

Long-document RAGGPT-5.6 Sol

Larger window (1.1M).

Screenshots / visionGPT-5.6 Sol

Both accept images. Defaulting to the higher-Elo side (GPT-5.6 Sol).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	GPT-5.6 Sol	Higher SWE-bench (77.6%).
High-volume chat	Claude 3.7 Sonnet	Lower output list price ($15/1M).
Voice / low-latency UI	Claude 3.7 Sonnet	Lower TTFT (240 ms).
Long-document RAG	GPT-5.6 Sol	Larger window (1.1M).
Screenshots / vision	GPT-5.6 Sol	Both accept images. Defaulting to the higher-Elo side (GPT-5.6 Sol).

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

Claude 3.7 Sonnet

Elo 1,362

LiveBench58.4%

SWE-bench70.3%

Speed85 tok/s

Output cost$15/1M

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, Claude 3.7 Sonnet or GPT-5.6 Sol?: GPT-5.6 Sol has the higher preference Elo in our latest snapshot (1,608). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude 3.7 Sonnet or GPT-5.6 Sol?: GPT-5.6 Sol leads SWE-bench at 77.6% vs 70.3%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Claude 3.7 Sonnet output tokens are $15/1M versus $30/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude 3.7 Sonnet or GPT-5.6 Sol?: Claude 3.7 Sonnet has the lower time-to-first-token (240 ms vs 270 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: GPT-5.6 Sol accepts 1.1M tokens versus 200k.
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 3.7 Sonnet 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 Claude 3.7 Sonnet matchups →|All GPT-5.6 Sol matchups →

Claude 3.7 Sonnet vs Claude 3.5 Sonnet (previous sonnet)Claude 3.7 Sonnet vs Claude Sonnet 4 (next sonnet)GPT-5.6 Sol vs GPT-5 (previous gpt-flagship)Claude Opus 4.5 vs GPT-5.6 Sol Claude Opus 4.6 vs GPT-5.6 Sol Claude Sonnet 4.5 vs GPT-5.6 Sol

Claude 3.7 Sonnet vs GPT-5.6 Sol benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude 3.7 Sonnet (4)vsGPT-5.6 Sol (6)

Claude 3.7 Sonnet: 4W (40%)Overall: GPT-5.6 SolGPT-5.6 Sol: 6W (60%)

← Claude 3.7 SonnetGPT-5.6 Sol →

GPT-5.6 Sol (5/5)

Intelligence & Reasoning

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

Preference Elo

1,362vs1,608

Coding Elo

—vs1,602

SWE-bench

70.3%vs77.6%

LiveBench

58.4%vs73.9%

GPQA Diamond

78.5%vs86.8%

Claude 3.7 Sonnet: 0WGPT-5.6 Sol: 5W

Claude 3.7 Sonnet (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

85 tok/svs84 tok/s

Time to first token

240 msvs270 ms

Claude 3.7 Sonnet: 2WGPT-5.6 Sol: 0W

Claude 3.7 Sonnet (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$15/1Mvs$30/1M

Input price

$3/1Mvs$5/1M

Context window

200kvs1.1M

Claude 3.7 Sonnet: 2WGPT-5.6 Sol: 1W

Recommended Workload Routing

Repo / coding agentsGPT-5.6 Sol

Higher SWE-bench (77.6%).

High-volume chatClaude 3.7 Sonnet

Lower output list price ($15/1M).

Voice / low-latency UIClaude 3.7 Sonnet

Lower TTFT (240 ms).

Long-document RAGGPT-5.6 Sol

Larger window (1.1M).

Screenshots / visionGPT-5.6 Sol

Both accept images. Defaulting to the higher-Elo side (GPT-5.6 Sol).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	GPT-5.6 Sol	Higher SWE-bench (77.6%).
High-volume chat	Claude 3.7 Sonnet	Lower output list price ($15/1M).
Voice / low-latency UI	Claude 3.7 Sonnet	Lower TTFT (240 ms).
Long-document RAG	GPT-5.6 Sol	Larger window (1.1M).
Screenshots / vision	GPT-5.6 Sol	Both accept images. Defaulting to the higher-Elo side (GPT-5.6 Sol).

Frequently Asked Questions

Which is better overall, Claude 3.7 Sonnet or GPT-5.6 Sol?

GPT-5.6 Sol has the higher preference Elo in our latest snapshot (1,608). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, Claude 3.7 Sonnet or GPT-5.6 Sol?

GPT-5.6 Sol leads SWE-bench at 77.6% vs 70.3%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Claude 3.7 Sonnet output tokens are $15/1M versus $30/1M. Input prices and retry rates still move the real bill.

Which is faster, Claude 3.7 Sonnet or GPT-5.6 Sol?

Claude 3.7 Sonnet has the lower time-to-first-token (240 ms vs 270 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

GPT-5.6 Sol accepts 1.1M tokens versus 200k.

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 3.7 Sonnet and GPT-5.6 Sol 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

GPT-5.6 Sol

Claude 3.7 Sonnet

Claude 3.7 Sonnet

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

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CompareLLM Matrix

Claude 3.7 Sonnet

GPT-5.6 Sol

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

GPT-5.6 Sol

Claude 3.7 Sonnet

Claude 3.7 Sonnet

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

Claude 3.7 Sonnet

GPT-5.6 Sol

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons