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Claude Fable 5.1 vs GPT-6 Astra

32 SHARED BENCHMARKS

Across 32 shared benchmarks, Claude Fable 5.1 scores higher on 17 and GPT-6 Astra on 15. The widest gap is OmniScience Non-Hallucination, where GPT-6 Astra scores 55.2 against 34.4.

ANTHROPICVSOPENAI32 SHARED17–15 HEAD-TO-HEAD
BenchmarkClaude Fable 5.1MARGINGPT-6 Astra
AA Agentic Index5851.5
AA Intelligence53.453
AA-LCR85.380.7
AA-Omniscience43.543.7
arc_agi_197.586
ARC-AGI-29095
Artificial Analysis Coding Index81.677.1
coding_arena_elo17621797
critpt31.131.7
DeepSWE 1.167.474.1
frontiermath_tier_487.897.6
gdpval63.254
GPQA Diamond93.796.3
healthbench_length_adjusted6058.1
healthbench_professional62.163.4
HLE6554.7
livebench_agentic_coding66.157.3
livebench_coding86.480.4
livebench_data_analysis80.383
livebench_instruction_following7375.6
livebench_language89.589.4
livebench_math9796.8
livebench_reasoning91.792.7
OmniScience Accuracy67.262.6
OmniScience Non-Hallucination34.455.2
scicode63.156.5
simplebench86.683.6
simpleqa_verified70.875.6
TauBench V3 - Banking47.243.1
Terminal-Bench 2.191.489.9
Terminal-Bench 4.05657.7
Terminal-Bench-Science 0.152.664.6

Best tracked score per model per benchmark (default configuration; source-attributed). ↓ marks lower-is-better metrics. Open either model for its full surface, provenance and pricing.

Compare Claude Fable 5.1 withEVERY TRACKED PAIRING

▶Anthropic12 PAIRINGS
Claude Opus 4.8Claude Sonnet 4.5Claude Opus 4.6Claude 3.5 SonnetClaude Fable 5Claude Opus 4.5Claude Opus 5Claude Opus 4.7Claude Sonnet 4Claude Sonnet 5Claude Sonnet 4.6Claude Opus 4
▶OpenAI11 PAIRINGS
GPT-5.5GPT-4oGPT-5.6 SolGPT-5.4GPT-5.2GPT-5o3GPT-5.1o4-minio1GPT-4o mini
▶Google9 PAIRINGS
Gemini 3.1 ProGemini 3 ProGemma 4 26B A4BGemini 2.5 ProGemini 1.5 ProGemma 4 31BGemini 3.5 FlashGemini 3.6 FlashGemini 3 Flash Preview
▶Alibaba11 PAIRINGS
Qwen3.5 35B A3BQwen3 VL 4B (Reasoning)Qwen2.5 Instruct 72BQwen3.5 397B A17BQwen3.5 27BQwen3.6 PlusQwen3.6 35B A3BQwen3.6 27BQwen3.7 MaxQwen3.8 Max PreviewQwen3.7 Plus Preview
▶DeepSeek4 PAIRINGS
DeepSeek-V3DeepSeek-V4-ProDeepSeek-V3.2DeepSeek-V4-Flash
▶Moonshot4 PAIRINGS
Kimi K2.5Kimi K2.6Kimi K3Kimi K2 Instruct
▶Meta2 PAIRINGS
Llama 3.1 Instruct 405BMuse Spark 1.1
▶Z.ai2 PAIRINGS
GLM-5.1GLM-5.2
▶MiniMax1 PAIRING
MiniMax M2.7
▶NVIDIA2 PAIRINGS
Nemotron 3 Super 120B A12BNemotron 3 Ultra 550B A55B

Compare GPT-6 Astra withEVERY TRACKED PAIRING

▶Anthropic12 PAIRINGS
Claude Opus 4.8Claude Sonnet 4.5Claude Opus 4.6Claude 3.5 SonnetClaude Fable 5Claude Opus 4.5Claude Opus 5Claude Opus 4.7Claude Sonnet 4Claude Sonnet 5Claude Sonnet 4.6Claude Opus 4
▶OpenAI11 PAIRINGS
GPT-5.5GPT-4oGPT-5.6 SolGPT-5.4GPT-5.2GPT-5o3GPT-5.1o4-minio1GPT-4o mini
▶Google9 PAIRINGS
Gemini 3.1 ProGemini 3 ProGemma 4 26B A4BGemini 2.5 ProGemini 1.5 ProGemma 4 31BGemini 3.5 FlashGemini 3.6 FlashGemini 3 Flash Preview
▶Alibaba11 PAIRINGS
Qwen3.5 35B A3BQwen3 VL 4B (Reasoning)Qwen2.5 Instruct 72BQwen3.5 397B A17BQwen3.5 27BQwen3.6 PlusQwen3.6 35B A3BQwen3.6 27BQwen3.7 MaxQwen3.8 Max PreviewQwen3.7 Plus Preview
▶DeepSeek4 PAIRINGS
DeepSeek-V3DeepSeek-V4-ProDeepSeek-V3.2DeepSeek-V4-Flash
▶Moonshot4 PAIRINGS
Kimi K2.5Kimi K2.6Kimi K3Kimi K2 Instruct
▶Meta2 PAIRINGS
Llama 3.1 Instruct 405BMuse Spark 1.1
▶Z.ai2 PAIRINGS
GLM-5.1GLM-5.2
▶MiniMax1 PAIRING
MiniMax M2.7
▶NVIDIA2 PAIRINGS
Nemotron 3 Super 120B A12BNemotron 3 Ultra 550B A55B