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Claude Haiku 4.5 vs GPT-5

Side-by-side pricing, capabilities, real-world cost across common scenarios, and our editorial pick.

Add a modelUp to 4 models can be compared
all prices in USD per 1M tokens
OVERALL WINNER

Claude Haiku 4.5

Anthropic · released 2026-04-08

Quality (AA Index)79
Input price$1.00
Output price$5.00
Context200K
Throughput250 tok/s
P50 latency0.4s
View full pricing

GPT-5

OpenAI · released 2026-01-15

Quality (AA Index)91
Input price$1.25
Output price$10.00
Context400K
Throughput120 tok/s
P50 latency0.7s
View full pricing
Try Claude Haiku 4.5 on OpenRouterTry GPT-5 on OpenRouter

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Head-to-head specs

Green column = winner per metric
MetricClaude Haiku 4.5GPT-5Verdict
Input price
/1M tokens
$1.00$1.25Claude Haiku 4.5 −20%
Output price
/1M tokens
$5.00$10.00Claude Haiku 4.5 −50%
Context window
max input length
200K400KGPT-5 +2.0×
AA Quality
AA Intelligence Index (0–100)
7991GPT-5 +12pt
Arena Elo
LMArena human-pref Elo (800–2000)
——Tied
Throughput
tokens per second
250120Claude Haiku 4.5 +108%
P50 latency
first token
0.4s0.7sClaude Haiku 4.5 −43%
Vision
multimodal
Tied
Function calling
tool use
Tied
Reasoning mode
chain-of-thought
Tied

Monthly cost across common scenarios

Default usage assumptions
ScenarioClaude Haiku 4.5GPT-5
customer support
1000K req · 600/180 tok
$1.5K$2.5K
chat with docs
300K req · 4000/300 tok
$1.6K$2.4K
code generation
500K req · 2000/500 tok
$2.3K$3.8K
voice assistant
600K req · 800/200 tok
$1.1K$1.8K
Our pick

For most workloads, choose Claude Haiku 4.5.

  • 20% cheaper input price, which compounds at scale
  • 108% faster throughput — matters for streaming UX and voice agents

Anthropic’s economy tier — gentler tone, stronger safety patterns than mainstream tiny models. Choose when output voice matters more than raw IQ.

Choose GPT-5 instead if: Best across-the-board quality but the most expensive token rate in the table; pick GPT-5 when reasoning depth or function-calling reliability outranks per-million-token spend.

Read our deep analysis

Why pick? Use both with smart routing

Phase 2 · gateway with fallback chain

Set Claude Haiku 4.5 as primary, GPT-5 as fallback. One key, one bill, automatic failover when Claude Haiku 4.5 errors.

PHASE 2 PREVIEW · gateway not live yetThis endpoint does not exist yet. The gateway is in Phase 2 — what you see below is a design preview of the planned interface, not a live API. We will email subscribers when it launches.
Preview the planned API call
$ curl https://api.aipricly.com/v1/chat/completions \
  -H "Authorization: Bearer $AIPC_KEY" \
  -d '{
    "routing": {
      "primary": "anthropic/claude-haiku-4-5",
      "fallback": ["openai/gpt-5"]
    },
    "messages": [{"role": "user", "content": "..."}]
  }'

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