Compare · ModelsLive · 2 picked · head to head
Grok 4 vs gpt-oss-20b
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Grok 4 wins on 5/5 benchmarks
Grok 4 wins 5 of 5 shared benchmarks. Leads in knowledge · language · math.
Category leads
knowledge·Grok 4language·Grok 4math·Grok 4reasoning·Grok 4
Hype vs Reality
Attention vs performance
Grok 4
#71 by perf·no signal
gpt-oss-20b
#22 by perf·no signal
Best value
gpt-oss-20b
130.2x better value than Grok 4
Grok 4
6.1 pts/$
$9.00/M
gpt-oss-20b
792.9 pts/$
$0.09/M
Vendor risk
Who is behind the model
xAI
$250.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
5 benchmarks · 2 models
Grok 4gpt-oss-20b
HELM · GPQA
Grok 4 leads by +13.2
Grok 4
72.6
gpt-oss-20b
59.4
HELM · IFEval
Grok 4 leads by +21.7
Grok 4
94.9
gpt-oss-20b
73.2
HELM · MMLU-Pro
Grok 4 leads by +11.1
Grok 4
85.1
gpt-oss-20b
74.0
HELM · Omni-MATH
Grok 4 leads by +3.8
Grok 4
60.3
gpt-oss-20b
56.5
HELM · WildBench
Grok 4 leads by +6.0
Grok 4
79.7
gpt-oss-20b
73.7
Full benchmark table
| Benchmark | Grok 4 | gpt-oss-20b |
|---|---|---|
HELM · GPQA | 72.6 | 59.4 |
HELM · IFEval | 94.9 | 73.2 |
HELM · MMLU-Pro | 85.1 | 74.0 |
HELM · Omni-MATH | 60.3 | 56.5 |
HELM · WildBench | 79.7 | 73.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| Grok 4 | $3.00 | $15.00 | 256K tokens (~128 books) | $60.00 |
| gpt-oss-20b | $0.03 | $0.14 | 131K tokens (~66 books) | $0.57 |