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FACTS Benchmark Suite leaderboard

GPT-6 Astra leads
75.7%
models measured
37
lead over #2
+0.4 pts
median
51.4%

Leader on FACTS Benchmark Suite · read October 21

On October 21, 2026, 37 of our catalog's models had a FACTS Benchmark Suite result, and OpenAI GPT-6 Astra led with 75.7%, ahead of OpenAI GPT-6.1 Sol at 75.3%.

A benchmark suite from Google DeepMind and Google Research that evaluates the factual accuracy and grounding of models. It has four parts: answers grounded in the context of a prompt, questions about input images, factoid questions answered from the model's own knowledge, and questions answered by using search as a tool. The number is the average accuracy across the four parts, as Kaggle publishes it.

Role in the index

FACTS Benchmark Suite is shown as published and does not feed any of our indexes. Read the methodology

37 models with a result

Original board: Kaggle Benchmarks
FACTS Benchmark Suite results for models in the catalog
# Model Result Evidence Coding index Output $/Mtok
1 GPT-6 AstraOpenAI 75.7% 85.1 $50.00
2 GPT-6.1 SolOpenAI 75.3% 82.4 $10.00
3 GPT-6 SolOpenAI 72.5% 76.0 $10.00
4 Gemini 3.7 FlashGoogle 71.2% 58.0 $3.75
5 Gemini 3.8 FlashGoogle 69.4% 61.6 $3.75
6 Gemini 3.1 Pro PreviewGoogle 67.4% 32.3 $12.00
7 GPT-5.5OpenAI 66.7% 71.3 $30.00
8 Gemini 3.6 FlashGoogle 65.3% 62.5 $3.75
9 Claude Opus 5.5Anthropic 65.3% 88.8 $20.00
10 Gemini 3 Flash PreviewGoogle 63.4% 43.7 $3.00
11 GPT-6 LunaOpenAI 63.3% 57.3 $0.50
12 Gemini 3.5 FlashGoogle 63.1% 39.8 $9.00
13 Gemini 2.5 ProGoogle 61.5% 19.1 $10.00
14 GPT-5OpenAI 56.5% 38.8 $10.00
15 Claude Opus 4.8Anthropic 53.5% 65.0 $25.00
16 Gemini 3.5 Flash LiteGoogle 53.5% 49.0 $2.50
17 GPT-5.6 SolOpenAI 52.4% 73.5 $20.00
18 GPT-5.6 TerraOpenAI 52.0% 63.9 $12.00
19 Gemini 3.1 Flash Lite PreviewGoogle 51.4% 22.7 $1.50
20 Grok 4.5xAI 50.2% 58.6 $6.00
21 GPT-5.2OpenAI 48.5% 55.9 $14.00
22 Gemini 2.5 FlashGoogle 47.2% Not benchmarked $2.50
23 GPT-4.1OpenAI 45.8% Not benchmarked $8.00
24 Claude Opus 4.7Anthropic 45.5% 67.5 $25.00
25 Gemma 4 31BGoogle 45.3% 39.0 $0.40
26 GPT-5.1OpenAI 45.0% 40.4 $10.00
27 o3OpenAI 44.4% Not benchmarked $8.00
28 Claude Opus 4.5Anthropic 43.9% 44.0 $25.00
29 Gemma 4 26B A4BGoogle 42.7% Not benchmarked $0.60
30 Claude Opus 4.6Anthropic 41.5% 57.2 $25.00
31 Claude Sonnet 4.5Anthropic 40.6% 39.5 $15.00
32 Claude Opus 4.1Anthropic 40.4% Not benchmarked $75.00
33 GPT-5 MiniOpenAI 38.6% 34.2 $2.00
34 Claude Sonnet 4.6Anthropic 37.0% 57.3 $15.00
35 GPT-5.6 LunaOpenAI 35.0% 58.0 $1.20
36 Gemma 3 27BGoogle 29.1% Not benchmarked $0.30
37 o4 MiniOpenAI 28.1% Not benchmarked $4.40

Only models in our catalog are listed, and each appears once with its best published run. 59 rows were read from the source on October 21, 2026, and rows that match no catalog model are left out.

What the result is made of

FACTS Benchmark Suite: the parts of each result
Model Result GroundingMultimodalParametricSearch
OpenAI GPT-6 Astra 75.7% 82.0%47.7%83.1%89.9%
OpenAI GPT-6.1 Sol 75.3% 82.4%48.5%82.1%88.2%
OpenAI GPT-6 Sol 72.5% 85.2%43.1%75.6%86.1%
Google Gemini 3.7 Flash 71.2% 75.5%49.8%78.7%80.9%
Google Gemini 3.8 Flash 69.4% 73.1%50.7%77.3%76.3%
Google Gemini 3.1 Pro Preview 67.4% 65.7%41.3%79.0%83.7%
OpenAI GPT-5.5 66.7% 76.2%45.8%78.0%Not published
Google Gemini 3.6 Flash 65.3% 72.5%47.2%73.4%68.2%
Anthropic Claude Opus 5.5 65.3% 68.5%48.4%57.9%86.5%
Google Gemini 3 Flash Preview 63.4% 59.0%41.3%72.3%80.9%
OpenAI GPT-6 Luna 63.3% 81.4%34.2%56.1%81.4%
Google Gemini 3.5 Flash 63.1% 73.2%41.4%73.5%64.3%
Google Gemini 2.5 Pro 61.5% 74.3%46.9%63.2%Not published
OpenAI GPT-5 56.5% 69.6%44.1%55.8%Not published
Anthropic Claude Opus 4.8 53.5% 69.7%39.8%25.1%79.6%
Google Gemini 3.5 Flash Lite 53.5% 71.2%35.8%43.4%63.4%
OpenAI GPT-5.6 Sol 52.4% 68.7%0.0%Not published88.5%
OpenAI GPT-5.6 Terra 52.0% 71.2%0.0%55.0%81.7%
Google Gemini 3.1 Flash Lite Preview 51.4% 66.5%39.4%48.4%Not published
SpaceXAI Grok 4.5 50.2% 74.5%0.0%46.8%79.4%
OpenAI GPT-5.2 48.5% 76.2%39.7%29.7%Not published
Google Gemini 2.5 Flash 47.2% 70.0%41.0%30.7%Not published
OpenAI GPT-4.1 45.8% 45.6%40.1%51.5%Not published
Anthropic Claude Opus 4.7 45.5% 61.7%35.8%38.8%Not published
Google Gemma 4 31B 45.3% 80.7%24.7%7.8%68.1%
OpenAI GPT-5.1 45.0% 50.0%41.8%43.2%Not published
OpenAI o3 44.4% 36.2%39.9%57.1%Not published
Anthropic Claude Opus 4.5 43.9% 62.1%39.2%30.6%Not published
Google Gemma 4 26B A4B 42.7% 80.9%23.9%5.7%60.3%
Anthropic Claude Opus 4.6 41.5% 54.9%36.8%33.0%Not published
Anthropic Claude Sonnet 4.5 40.6% 61.8%31.1%29.0%Not published
Anthropic Claude Opus 4.1 40.4% 54.8%33.1%33.2%Not published
OpenAI GPT-5 Mini 38.6% 58.3%41.5%16.0%Not published
Anthropic Claude Sonnet 4.6 37.0% 56.2%32.6%22.1%Not published
OpenAI GPT-5.6 Luna 35.0% 0.0%35.8%25.0%79.4%
Google Gemma 3 27B 29.1% 56.4%24.6%6.3%Not published
OpenAI o4 Mini 28.1% 29.3%34.5%20.5%Not published

The parts as Kaggle Benchmarks publishes them, for the same run as the result.