AI model matchup

Claude Opus 4.8 vs GPT-5.6 Terra

A side-by-side look at published capability scores, listed API pricing, speed, context, and license - to help you decide which trade-offs fit your work.

Select Model A(85 models)

Select Model B(85 models)

OpenAI

GPT-5.6 Sol

Rank #1 • Score 57.2

Comparison Metrics

Speed: 89c/s vs 68c/s

Pricing: $7.78 vs $7.22

Anthropic

Claude Opus 5

Rank #2 • Score 56.2

Claude Opus 4.8vsGPT-5.6 Terra

GPT-5.6 Terra leads the RankLLMs Index by 0.2 points (55.0 vs 54.8). Verified API Pricing: $5.00 (Claude Opus 4.8) vs $2.00 (GPT-5.6 Terra) per 1M tokens.

Capability profile

Claude Opus 4.8GPT-5.6 Terra

Speed duel

tps

Claude Opus 4.857

GPT-5.6 Terra117

Price duel

$/1M

Claude Opus 4.8$5.00

GPT-5.6 Terra$2.00

Shorter bar = cheaper. Blended per 1M tokens.

Metric	Claude Opus 4.8	GPT-5.6 Terra
RankLLMs Overall Score	54.8 pts	55.0 pts ▲
Reasoning	59.5 ▲	59.2
Coding	76.5	77.4 ▲
Agentic Tool Use	83.4 ▲	52.0
Code Arena Elo	1890 ▲	1523
Inference Speed	57 tps	117 tps ▲
API Price (per 1M tokens)	$5.00	$2.00 ▲
Context Window	1M	1.1M
License	Proprietary	Proprietary
Global Rank	#19	#18 ▲

Decision notes

What the numbers suggest

GPT-5.6 Terra leads the RankLLMs overall score by 0.2 points. GPT-5.6 Terra has the lower listed API rate ($2.00 per 1M tokens).

Treat the overall index as a starting point, then prioritize the benchmark that resembles your task. Published scores and provider pricing can change; this comparison does not represent a first-party test of either model.

Overall index: GPT-5.6 Terra leads; 54.8 to 55.0 pts
Coding score: GPT-5.6 Terra leads; 76.5 to 77.4 pts
Reasoning score: Claude Opus 4.8 leads; 59.5 to 59.2 pts
Agentic score: Claude Opus 4.8 leads; 83.4 to 52.0 pts

Choose by workload

Which profile fits your use?

Anthropic

Consider Claude Opus 4.8 when

your workload gives more weight to the higher listed reasoning score. Compare those signals with your own task mix, latency needs, and budget.

View Claude Opus 4.8 profile

OpenAI

Consider GPT-5.6 Terra when

your workload gives more weight to the higher listed coding score, the higher overall index score, the lower listed API rate. Compare those signals with your own task mix, latency needs, and budget.

View GPT-5.6 Terra profile

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