Compare · ModelsLive · 2 picked · head to head
Palmyra X5 vs GPT-5.1
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.1 wins on 3/5 benchmarks
GPT-5.1 wins 3 of 5 shared benchmarks. Leads in language · math · reasoning.
Category leads
knowledge·Palmyra X5language·GPT-5.1math·GPT-5.1reasoning·GPT-5.1
Hype vs Reality
Attention vs performance
Palmyra X5
#17 by perf·no signal
GPT-5.1
#97 by perf·no signal
Best value
Palmyra X5
2.4x better value than GPT-5.1
Palmyra X5
21.1 pts/$
$3.30/M
GPT-5.1
8.8 pts/$
$5.63/M
Vendor risk
Who is behind the model
writer
private · undisclosed
OpenAI
$840.0B·Tier 1
Head to head
5 benchmarks · 2 models
Palmyra X5GPT-5.1
HELM · GPQA
Palmyra X5 leads by +21.9
Palmyra X5
66.1
GPT-5.1
44.2
HELM · IFEval
GPT-5.1 leads by +11.2
Palmyra X5
82.3
GPT-5.1
93.5
HELM · MMLU-Pro
Palmyra X5 leads by +22.5
Palmyra X5
80.4
GPT-5.1
57.9
HELM · Omni-MATH
GPT-5.1 leads by +4.9
Palmyra X5
41.5
GPT-5.1
46.4
HELM · WildBench
GPT-5.1 leads by +8.3
Palmyra X5
78.0
GPT-5.1
86.3
Full benchmark table
| Benchmark | Palmyra X5 | GPT-5.1 |
|---|---|---|
HELM · GPQA | 66.1 | 44.2 |
HELM · IFEval | 82.3 | 93.5 |
HELM · MMLU-Pro | 80.4 | 57.9 |
HELM · Omni-MATH | 41.5 | 46.4 |
HELM · WildBench | 78.0 | 86.3 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.60 | $6.00 | 1.0M tokens (~520 books) | $19.50 | |
| $1.25 | $10.00 | 400K tokens (~200 books) | $34.38 |