Model comparison · Updated 17 Aug 2026

Claude Haiku 4.5 vs o4 Mini

Claude Haiku 4.5 is about 1.1× cheaper on input ($1.00 against $1.10 per 1M tokens), though o4 Mini is cheaper on output. Both have a 200K-token context window. For a support chatbot at 10,000 chats a day, the standard-tier bill is about $900 a month for Claude Haiku 4.5 and $891 for o4 Mini.

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ModelsAtlas. “Claude Haiku 4.5 vs o4 Mini”. Retrieved 17 Aug 2026. https://modelsatlas.com/compare/anthropic/claude-haiku-4-5/vs/openai/o4

Model A

Claude Haiku 4.5

by Anthropic · weights not marked open · GRIDE3

Input / 1M
$1.00
asserted Vendor states
Source
docs.anthropic.com/en/docs/about-claude/pricing
Retrieved
17 Aug 2026

Output / 1M$5.00

Context200K

Model B

o4 Mini

by OpenAI · weights not marked open · GRIDE3

Input / 1M
$1.10
observed We measured
Source
Our catalogue
Retrieved
17 Aug 2026

Output / 1M$4.40

Context200K

Key numbers

Standard tier · highlighted = better

Claude Haiku 4.5

o4 Mini

Input / 1M tokens

$1.00

$1.10

Output / 1M tokens

$5.00

$4.40

Batch input / output

$0.50 / $2.50

$0.55 / $2.20

Context window

200,000

Input types

Not disclosed

Weights

Not marked open

Tiers listed

batch, standard

Prices checked

2026-08-17

What it costs for real workloads

Monthly, standard tier, 30 days

Support chatbot10k chats/day · 1.5k in, 300 out

$900/mo

$891/mo

RAG over documents2k queries/day · 12k in, 500 out

$870/mo

$924/mo

Coding agent300 tasks/day · 60k in, 8k out

$900/mo

$911/mo

Claude Haiku 4.5 o4 Mini · Derived from the standard-tier prices above, input and output tokens per request as stated, 30 days. Excludes caching discounts and batch. Try your own numbers.

On the atlas

Price band (A–H) × context band (1–6)

Same square. Claude Haiku 4.5 and o4 Mini share E3.

Same square as Claude Haiku 4.5: Grok Build 0.1 ($1.00), o3 Mini High ($1.10), o4 Mini High ($1.10). Open E3

Claude Haiku 4.5o4 MiniNearest neighboursOpen weights

View the map as a table (1 squares)

Square	Price band	Context band	Models
GRIDE3	$1–3	128–256K	Claude Haiku 4.5, o4 Mini, Grok Build 0.1, o3 Mini High, o4 Mini High, Nano Banana Pro (Gemini 3 Pro Image), o3

Capabilities side by side

Only what our records list

Claude Haiku 4.5

o4 Mini

Vision input

Not disclosed

Audio input

Not disclosed

Open weights

Not marked open

Batch tier

Supported

Free tier

Not listed

Thinking tier

Not listed

Neither record lists input types, so we do not claim any.

Which should you choose?

Editorial

Choose Claude Haiku 4.5 if…

you pay by the token: it costs $1.00 per 1M input against $1.10

Choose o4 Mini if…

output dominates your bill: $4.40 per 1M output against $5.00

Each reason is a fact from the tables above. Picking between them is our judgement, and we do not benchmark quality: price and context are what we can measure, so test both on your own prompts before you commit.

Questions

Is Claude Haiku 4.5 better than o4 Mini?

We do not benchmark quality, so we cannot say. On the recorded numbers: Claude Haiku 4.5 is about 1.1× cheaper on input ($1.00 against $1.10 per 1M tokens), though o4 Mini is cheaper on output. Both have a 200K-token context window. For a support chatbot at 10,000 chats a day, the standard-tier bill is about $900 a month for Claude Haiku 4.5 and $891 for o4 Mini. Which is better for you depends on your task; test both on your own prompts.

Which is cheaper, Claude Haiku 4.5 or o4 Mini?

Claude Haiku 4.5: $1.00 against $1.10 per 1M input tokens, and $5.00 against $4.40 per 1M output, on standard pricing.

How much does each cost per 1M tokens?

Claude Haiku 4.5: $1.00 input and $5.00 output. o4 Mini: $1.10 input and $4.40 output. Standard tier, USD.

Which has the larger context window?

Neither: both have 200,000 tokens.

Do both offer batch pricing?

Claude Haiku 4.5 lists a batch tier, at 50% of its standard price. o4 Mini lists a batch tier, at 50% of its standard price.

Can both read images or audio?

Input types recorded for Claude Haiku 4.5: none recorded. For o4 Mini: none recorded. Where a record lists none we say so rather than guess; check each vendor's documentation before relying on a capability.

Is either model open-weight?

Claude Haiku 4.5: not marked open-weight in our records. o4 Mini: not marked open-weight in our records.

What would each cost for a support chatbot?

At 10,000 chats a day, 1,500 input and 300 output tokens each, 30 days, standard tier: about $900 a month for Claude Haiku 4.5 and $891 for o4 Mini. This is our calculation from the listed prices, not a quote.