Compare · ModelsLive · 2 picked · head to head
GPT-6.1 Sol vs Claude Sonnet 5.5
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Sonnet 5.5 wins on 4/6 benchmarks
Claude Sonnet 5.5 wins 4 of 6 shared benchmarks. Leads in speed.
Category leads
speed·Claude Sonnet 5.5
Hype vs Reality
Attention vs performance
GPT-6.1 Sol
no bench·#1 by attention
Claude Sonnet 5.5
#11 by perf·#10 by attention
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
Anthropic
$965.0B·Tier 1
Head to head
6 benchmarks · 2 models
GPT-6.1 SolClaude Sonnet 5.5
Artificial Analysis · CritPt
GPT-6.1 Sol leads by +0.3
GPT-6.1 Sol
31.7
Claude Sonnet 5.5
31.4
Artificial Analysis · GDPval
Claude Sonnet 5.5 leads by +13.2
GPT-6.1 Sol
53.8
Claude Sonnet 5.5
67.0
Artificial Analysis · Humanity's Last Exam
Claude Sonnet 5.5 leads by +2.1
GPT-6.1 Sol
52.9
Claude Sonnet 5.5
55.0
Artificial Analysis · Long Context Reasoning
GPT-6.1 Sol leads by +0.3
GPT-6.1 Sol
83.0
Claude Sonnet 5.5
82.7
Artificial Analysis · Quality Index
Claude Sonnet 5.5 leads by +4.2
GPT-6.1 Sol
51.8
Claude Sonnet 5.5
56.0
Artificial Analysis · SciCode
Claude Sonnet 5.5 leads by +6.8
GPT-6.1 Sol
54.2
Claude Sonnet 5.5
61.0
Full benchmark table
| Benchmark | GPT-6.1 Sol | Claude Sonnet 5.5 |
|---|---|---|
Artificial Analysis · CritPt | 31.7 | 31.4 |
Artificial Analysis · GDPval | 53.8 | 67.0 |
Artificial Analysis · Humanity's Last Exam | 52.9 | 55.0 |
Artificial Analysis · Long Context Reasoning | 83.0 | 82.7 |
Artificial Analysis · Quality Index | 51.8 | 56.0 |
Artificial Analysis · SciCode | 54.2 | 61.0 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $2.00 | $10.00 | 1.1M tokens (~525 books) | $40.00 | |
| $2.00 | $10.00 | 1.0M tokens (~500 books) | $40.00 |
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