Compare/Claude Instant vs GPT-5.4 (Non-reasoning)

Claude InstantvsGPT-5.4 (Non-reasoning)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

Anthropic

Claude Instant

Input
$0/M
Output
$0/M
Speed
TTFT
OpenAI

GPT-5.4 (Non-reasoning)

Input
$2.5/M
Output
$15/M
Speed
61 tok/s
TTFT
0.65s

Winner by Category

Cheaper
Claude Instant
Faster (tok/s)
GPT-5.4 (Non-reasoning)
Lower Latency
Claude Instant
Benchmarks (3-7)
GPT-5.4 (Non-reasoning)

Pricing Comparison

MetricClaude InstantGPT-5.4 (Non-reasoning)
Input ($/M tokens)$0$2.5
Output ($/M tokens)$0$15
Cost for 1M input + 100K output tokens:
Claude Instant$0.00
GPT-5.4 (Non-reasoning)$4.00

Speed Comparison

Output Speed (tokens/s) — higher is better
Claude Instant
GPT-5.4 (Non-reasoning)
61 tok/s
Time to First Token (seconds) — lower is better
Claude Instant
GPT-5.4 (Non-reasoning)
0.65s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
7.435.4
Coding Index
7.841.0
Math Index
GPQA Diamond
33.0%74.8%
MMLU-Pro
43.4%
LiveCodeBench
10.9%
AIME 2025
MATH-500
26.4%
Humanity's Last Exam
3.8%10.6%
SciCode
47.1%
IFBench
48.4%
TerminalBench
37.9%
Claude Instant3 wins
7 winsGPT-5.4 (Non-reasoning)

Frequently Asked Questions

Which is cheaper, Claude Instant or GPT-5.4 (Non-reasoning)?

Claude Instant is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $5.63/M for GPT-5.4 (Non-reasoning).

Which model performs better on benchmarks?

GPT-5.4 (Non-reasoning) wins 7 out of 12 benchmarks compared to 3 for Claude Instant. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-5.4 (Non-reasoning) generates tokens faster at 61 tok/s vs 0 tok/s. Claude Instant also has lower time-to-first-token (0.00s vs 0.65s).

When should I use Claude Instant vs GPT-5.4 (Non-reasoning)?

Choose based on your priorities: Claude Instant for lower cost, GPT-5.4 (Non-reasoning) for stronger benchmark performance, and GPT-5.4 (Non-reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.