How do GPT-6 Astra and GPT-5.6 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-6 Astra and GPT-5.6 Sol when publicly disclosed.

LLM Comparison

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

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

AskClash compares GPT-6 Astra and GPT-5.6 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-6 Astra vs GPT-5.6 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-6 Astra model page GPT-5.6 Sol model page

Rank #3 vs #4AskClash overall scores 69.2 vs 68.5.

Pricing $10.0/$50.0 vs $5.00/$30.0Input and output token prices per 1M tokens when published.

Proprietary vs ProprietaryOpenAI vs OpenAI.

GPT-6 Astra vs GPT-5.6 Sol benchmark comparison

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

Metric	GPT-6 Astra	GPT-5.6 Sol
Overall Score	69.2	68.5
Leaderboard Rank	#3	#4
ACB	64.5	63.2
RWT	9.5	9.5
Coding Agent Index	67.0	80.0
HLE	57.2	47.2
GPQA	96.0	94.1
SWE-Pro	—	64.6
SWE-Atlas	—	84.0
Terminal-Bench	88.4	88.8
DeepSWE	73.2	72.7
GDPval-AA	1629.3	1748.0
Finance Agent	53.5	53.8
MMMU-Pro	87.0	83.0
ARC-AGI 2	95.0	92.5
Tau2	—	85.1
MRCR	100.0	91.5
Input Price (per 1M tokens)	$10.0	$5.00
Output Price (per 1M tokens)	$50.0	$30.0
Context Window	1M	1M
Benchmarks Published	12	15

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

GPT-6 Astra leads 8 and GPT-5.6 Sol leads 4 of 13 shared benchmarks. GPT-5.6 Sol is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

GPT-6 AstraGPT-5.6 Sol

Overall

69.2GPT-6 Astra

68.5GPT-5.6 Sol

ACB

64.5GPT-6 Astra

63.2GPT-5.6 Sol

RWT

9.5GPT-6 Astra

9.5GPT-5.6 Sol

Coding Agent Index

67.0GPT-6 Astra

80.0GPT-5.6 Sol

HLE

57.2GPT-6 Astra

47.2GPT-5.6 Sol

GPQA

96.0GPT-6 Astra

94.1GPT-5.6 Sol

Terminal-Bench

88.4GPT-6 Astra

88.8GPT-5.6 Sol

DeepSWE

73.2GPT-6 Astra

72.7GPT-5.6 Sol

GDPval-AA

1629.3GPT-6 Astra

1748.0GPT-5.6 Sol

Finance Agent

53.5GPT-6 Astra

53.8GPT-5.6 Sol

MMMU-Pro

87.0GPT-6 Astra

83.0GPT-5.6 Sol

ARC-AGI 2

95.0GPT-6 Astra

92.5GPT-5.6 Sol

GPT-6 Astra

Input$10.0

Output$50.0

Workload$20

Context1M

GPT-5.6 Sol

Input$5.00

Output$30.0

Workload$11

Context1M

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

More GPT-6 Astra and GPT-5.6 Sol comparisons

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Claude Fable 5.1 vs GPT-6 Astra Claude Fable 5.1 vs GPT-5.6 Sol Claude Fable 5 vs GPT-6 Astra Claude Fable 5 vs GPT-5.6 Sol GPT-6 Astra vs Claude Opus 5 GPT-5.6 Sol vs Claude Opus 5 GPT-6 Astra vs Grok 4.6 GPT-5.6 Sol vs Grok 4.6 GPT-6 Astra vs Claude Opus 4.8 GPT-5.6 Sol vs Claude Opus 4.8

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.