Compare · ModelsLive · 2 picked · head to head
GPT-5.4 vs Claude Opus 4.6 (Fast)
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.4 wins on 3/4 benchmarks
GPT-5.4 wins 3 of 4 shared benchmarks. Leads in speed.
Category leads
speed·GPT-5.4arena·Claude Opus 4.6 (Fast)
Hype vs Reality
Attention vs performance
GPT-5.4
#44 by perf·no signal
Claude Opus 4.6 (Fast)
#120 by perf·no signal
Best value
GPT-5.4
14.0x better value than Claude Opus 4.6 (Fast)
GPT-5.4
6.7 pts/$
$8.75/M
Claude Opus 4.6 (Fast)
0.5 pts/$
$90.00/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
Anthropic
$380.0B·Tier 1
Head to head
4 benchmarks · 2 models
GPT-5.4Claude Opus 4.6 (Fast)
Artificial Analysis · Agentic Index
GPT-5.4 leads by +1.8
GPT-5.4
69.4
Claude Opus 4.6 (Fast)
67.6
Artificial Analysis · Coding Index
GPT-5.4 leads by +9.2
GPT-5.4
57.3
Claude Opus 4.6 (Fast)
48.1
Artificial Analysis · Quality Index
GPT-5.4 leads by +4.2
GPT-5.4
57.2
Claude Opus 4.6 (Fast)
53.0
Chatbot Arena Elo · Overall
Claude Opus 4.6 (Fast) leads by +37.0
GPT-5.4
1465.8
Claude Opus 4.6 (Fast)
1502.8
Full benchmark table
| Benchmark | GPT-5.4 | Claude Opus 4.6 (Fast) |
|---|---|---|
Artificial Analysis · Agentic Index | 69.4 | 67.6 |
Artificial Analysis · Coding Index | 57.3 | 48.1 |
Artificial Analysis · Quality Index | 57.2 | 53.0 |
Chatbot Arena Elo · Overall | 1465.8 | 1502.8 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| GPT-5.4 | $2.50 | $15.00 | 1.1M tokens (~525 books) | $56.25 |
| Claude Opus 4.6 (Fast) | $30.00 | $150.00 | 1.0M tokens (~500 books) | $600.00 |