How do GPT-5.6 Terra and GPT-6 Sol compare on coding benchmarks?

The comparison table shows SWE-bench, SWE-Pro, SWE-Atlas, Terminal-Bench, DeepSWE, and coding agent index scores for both GPT-5.6 Terra and GPT-6 Sol when publicly disclosed.

LLM Comparison

GPT-5.6 Terra vs GPT-6 Sol: benchmark scores, pricing & comparison.

Q: Which is better: GPT-5.6 Terra or GPT-6 Sol?

AskClash compares GPT-5.6 Terra and GPT-6 Sol side by side across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, AskClash ACB, and context window so you can see which model wins on each benchmark.

Side-by-side GPT-5.6 Terra vs GPT-6 Sol comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.

Open live leaderboard GPT-5.6 Terra model page GPT-6 Sol model page

Rank #14 vs #30AskClash overall scores 64.1 vs 56.6.

Pricing $2.50/$15.0 vs $2.00/$10.0Input and output token prices per 1M tokens when published.

Proprietary vs ProprietaryOpenAI vs OpenAI.

GPT-5.6 Terra vs GPT-6 Sol benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

Metric	GPT-5.6 Terra	GPT-6 Sol
Overall Score	64.1	56.6
Leaderboard Rank	#14	#30
ACB	56.4	55.8
RWT	8.5	—
Coding Agent Index	77.0	—
HLE	42.9	47.9
GPQA	92.9	—
IFEval	71.2	—
SWE-Pro	63.4	—
SWE-Atlas	81.0	—
Terminal-Bench	87.4	—
DeepSWE	69.6	68.8
GDPval-AA	1593.0	1486.9
Finance Agent	54.4	—
MMMU-Pro	80.7	83.3
ARC-AGI 2	83.9	—
Tau2	86.3	—
MRCR	89.6	—
Input Price (per 1M tokens)	$2.50	$2.00
Output Price (per 1M tokens)	$15.0	$10.0
Context Window	1M	1.05M
Benchmarks Published	16	6

GPT-5.6 Terra vs GPT-6 Sol head-to-head charts

GPT-5.6 Terra leads 4 and GPT-6 Sol leads 2 of 6 shared benchmarks. GPT-6 Sol is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

GPT-5.6 TerraGPT-6 Sol

Overall

64.1GPT-5.6 Terra

56.6GPT-6 Sol

ACB

56.4GPT-5.6 Terra

55.8GPT-6 Sol

HLE

42.9GPT-5.6 Terra

47.9GPT-6 Sol

DeepSWE

69.6GPT-5.6 Terra

68.8GPT-6 Sol

GDPval-AA

1593.0GPT-5.6 Terra

1486.9GPT-6 Sol

MMMU-Pro

80.7GPT-5.6 Terra

83.3GPT-6 Sol

GPT-5.6 Terra

Input$2.50

Output$15.0

Workload$5.50

Context1M

GPT-6 Sol

Input$2.00

Output$10.0

Workload$4.00

Context1.05M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More GPT-5.6 Terra and GPT-6 Sol comparisons

Explore how GPT-5.6 Terra and GPT-6 Sol stack up against other top-ranked LLMs.

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How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

Token pricing

Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.

Coverage matters

Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.

This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.