Compare/Claude 4.5 Haiku (Reasoning) vs Magistral Medium 1.2

Claude 4.5 Haiku (Reasoning)vsMagistral Medium 1.2

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

Anthropic

Claude 4.5 Haiku (Reasoning)

Input
$1/M
Output
$5/M
Speed
139 tok/s
TTFT
9.86s
Mistral

Magistral Medium 1.2

Input
$2/M
Output
$5/M
Speed
98 tok/s
TTFT
0.45s

Winner by Category

Cheaper
Claude 4.5 Haiku (Reasoning)
Faster (tok/s)
Claude 4.5 Haiku (Reasoning)
Lower Latency
Magistral Medium 1.2
Benchmarks (8-3)
Claude 4.5 Haiku (Reasoning)

Pricing Comparison

MetricClaude 4.5 Haiku (Reasoning)Magistral Medium 1.2
Input ($/M tokens)$1$2
Output ($/M tokens)$5$5
Cost for 1M input + 100K output tokens:
Claude 4.5 Haiku (Reasoning)$1.50
Magistral Medium 1.2$2.50

Speed Comparison

Output Speed (tokens/s) — higher is better
Claude 4.5 Haiku (Reasoning)
139 tok/s
Magistral Medium 1.2
98 tok/s
Time to First Token (seconds) — lower is better
Claude 4.5 Haiku (Reasoning)
9.86s
Magistral Medium 1.2
0.45s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
37.127.1
Coding Index
32.621.7
Math Index
83.782.0
GPQA Diamond
67.2%73.9%
MMLU-Pro
76.0%81.5%
LiveCodeBench
61.5%75.0%
AIME 2025
83.7%82.0%
MATH-500
Humanity's Last Exam
9.7%9.6%
SciCode
43.3%39.2%
IFBench
54.3%43.0%
TerminalBench
27.3%12.9%
Claude 4.5 Haiku (Reasoning)8 wins
3 winsMagistral Medium 1.2

Frequently Asked Questions

Which is cheaper, Claude 4.5 Haiku (Reasoning) or Magistral Medium 1.2?

Claude 4.5 Haiku (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $2.00/M tokens vs $2.75/M for Magistral Medium 1.2.

Which model performs better on benchmarks?

Claude 4.5 Haiku (Reasoning) wins 8 out of 12 benchmarks compared to 3 for Magistral Medium 1.2. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Claude 4.5 Haiku (Reasoning) generates tokens faster at 139 tok/s vs 98 tok/s. However, Magistral Medium 1.2 has lower time-to-first-token (0.45s vs 9.86s).

When should I use Claude 4.5 Haiku (Reasoning) vs Magistral Medium 1.2?

Choose based on your priorities: Claude 4.5 Haiku (Reasoning) for lower cost, Claude 4.5 Haiku (Reasoning) for stronger benchmark performance, and Claude 4.5 Haiku (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.