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Best LLM for PDFs and files

Claude Opus 5.5 leads
57.6
models ranked
77
lead over #2
+1.6

Overall index · read October 21

As of October 21, 2026, Anthropic Claude Opus 5.5 leads 77 models that qualify, with 57.6 on the overall index, ahead of Anthropic Claude Sonnet 5.5 (56.0) and Anthropic Claude Fable 5.1 (53.4).

Top 20 of 77, higher is better

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Best LLM for PDFs and files
Rank Model Overall index Evidence Coding index Output $/Mtok
1
Claude Opus 5.5 Anthropic
57.6
92.2 $20.00
2
Claude Sonnet 5.5 Anthropic
56.0
88.9 $10.00
3
Claude Fable 5.1 Anthropic
53.4
89.1 $50.00
4
GPT-6 Astra OpenAI
52.7
88.7 $50.00
5
52.6
80.5 $10.00
6
GPT-6.1 Sol OpenAI
51.8
88.7 $10.00
7
Claude Opus 5 Anthropic
50.8
81.8 $25.00
8
Claude Fable 5 Anthropic
49.6
82.1 $50.00
9
48.1
79.7 $4.25
10
GPT-6 Sol OpenAI
47.6
82.8 $10.00
11
GPT-5.6 Sol OpenAI
47.0
76.7 $20.00
12
Grok 4.7 xAI
46.4
75.0 $6.00
13
Grok 4.6 xAI
44.3
76.4 $6.00
14
Claude Haiku 5.5 Anthropic
43.4
75.9 $0.50
15
GPT-5.6 Terra OpenAI
42.1
69.0 $12.00
16
Claude Opus 4.8 Anthropic
41.8
66.0 $25.00
17
40.9
70.5 $4.125
18
Claude Opus 4.7 Anthropic
40.7
51.1 $25.00
19
39.6
69.9 $3.75
20
39.6
65.1 $4.25

How this list is built

Generated from the dataset on every refresh. Nobody picks the order by hand.

Models whose OpenRouter listing takes files as input, ordered by the Artificial Analysis Intelligence Index, highest first. The index is a composite of evaluations Artificial Analysis runs itself, published on a 0 to 100 scale.

Other lists

Rankings beyond coding · Methodology