Claude Haiku 4.5 vs Llama 4 405B

A side-by-side look at Anthropic's Claude Haiku 4.5 and Meta's Llama 4 405B — covering API pricing, context window, latency, coding ability, and real-world fit, so you can pick the right model for what you're building.

TL;DR
Best for long context Llama 4 405B
Best for cost efficiency Claude Haiku 4.5
Best for reasoning Llama 4 405B

Quick Verdict

Overall Value
Claude Haiku 4.5
Best Context
Llama 4 405B
Close pricingCompare by features

Cost optimization across both models

Access either model through one API key. Pay only for what you use — save up to 70% vs official pricing.

Up to 70%
API cost savings
C
Claude Haiku 4.5
Anthropic
$1.00 / $5.00
L
Llama 4 405B
Meta
$1.30 / $5.00

Overview

Claude Haiku 4.5 and Llama 4 405B come from different camps — Anthropic versus Meta — and they split most sharply on price and context. Claude Haiku 4.5 runs at $1.00/$5.00 per 1M tokens with a 200K window; Llama 4 405B sits at $1.30/$5.00 with 256K of context. Neither is objectively "better" — the right pick depends on what you're shipping.

In practice: Claude's fastest and most affordable model. Perfect for chat, classification, and high-volume tasks. Meta's largest open-weight model with 405 billion parameters. Near-frontier performance on reasoning and coding tasks. Available through AI API Hub with pay-as-you-go pricing. Both ship through AI API Hub on an OpenAI-compatible endpoint, so you can move between them by changing a single model name — and settle the bill with USDT or USDC, no credit card required.

On cost alone, Claude Haiku 4.5 is the cheaper of the two (Save $0.30 per 1M input), which adds up fast once real traffic hits. Use the calculator below to model your own volume.

Interactive Cost Calculator

Estimate monthly cost & savings. Default values pre-filled.
Token unit:
Presets:
Claude Haiku 4.5 / month
$3500.00
Llama 4 405B / month
$3800.00
Savings ($/mo)
$300.00
Savings (%)
8%
💡 Claude Haiku 4.5 saves $300.00/month (8%) vs Llama 4 405B

Deep Specs Matchup

SpecificationClaude Haiku 4.5Llama 4 405B
ProviderAnthropicMeta
Release Date2026-052026-05
Context Window200K256K
Max Output Tokens8,19232,768
Input Price$1.00/1M$1.30/1M
Output Price$5.00/1M$5.00/1M
Vision SupportYes ✓ — image inputYes ✓ — image input
Audio SupportNoNo
Function Calling / Tool UseYes ✓No
JSON Mode SupportNoNo
StreamingYes ✓Yes ✓
Fine TuningNoNo
Rate Limits (RPM/TPM)10K RPM5K RPM
Latency P95N/AN/A
Latency P99N/AN/A
Statusactiveactive

Latency P95/P99: Not publicly disclosed by provider — marked N/A to avoid fabrication. Rate limits shown as published by the provider; plan-dependent where N/A. All data sourced from model-variants.ts.

Pros & Cons Analysis

Claude Haiku 4.5

3 × Pros
  • Tool use — function calling for AI agents
  • Multimodal — vision/image input supported
  • Fastest Claude
2 × Cons
  • Limited depth
  • Smaller context vs Sonnet

Llama 4 405B

3 × Pros
  • Multimodal — vision/image input supported
  • Open-weight
  • 405B parameters
2 × Cons
  • No function calling — limited for AI agents
  • Not fully open-source

Benchmark Scores

BenchmarkClaude Haiku 4.5Llama 4 405B
MMLUN/AN/A
HumanEvalN/AN/A
SWE-benchN/AN/A
GSM8KN/AN/A
Arena ScoreN/AN/A
Source: official provider publications where available (public benchmark). Scores marked N/A are not publicly disclosed by the provider — we do not fabricate benchmark values.

E-E-A-T note: Benchmark data is sourced exclusively from official provider releases stored in our model registry. No estimated or inferred scores are shown.

🧠 Human Decision Summary

If your workload involves long document reasoning or multi-step instruction following → Llama 4 405B performs better with its 256K context.

If cost is your primary constraint → Claude Haiku 4.5 provides ~23% lower cost per 1M tokens.

If you need function-calling AI agents → Claude Haiku 4.5 is the only option with tool use support.

These recommendations are derived from each model's capabilities and pricing in our registry — not hand-written per page.

🏆 Winner per Dimension

CategoryWinnerReason
CodingTieNative code generation + better price-performance
Long contextLlama 4 405BLarger context window (256K)
Cost efficiencyClaude Haiku 4.5Lower input price — $1.00/1M vs $1.30/1M
ReasoningLlama 4 405BChain-of-thought / math specialization
MultimodalTieVision / image input support

Real-world Use Cases

Claude Haiku 4.5

  • Code generation agent
    Function calling enables autonomous code workflows
  • RAG knowledge assistant
    200K context for document retrieval
  • Document summarization system
    Vision + long context for image-heavy documents

Llama 4 405B

  • RAG knowledge assistant
    256K context for document retrieval
  • Document summarization system
    Vision + long context for image-heavy documents
  • Customer support automation
    Quality responses for support workflows

Best For

Use CaseClaude Haiku 4.5Llama 4 405B
Coding★★
AI Agents★★★★★
Research★★★
Writing★★★★★★
Enterprise★★★★

Performance & Pricing Analysis

On performance, Claude Haiku 4.5 leans into fastest claude and pairs it with 200K of context — enough for fastest claude and budget-friendly. Llama 4 405B answers with open-weight across 256K, which makes it the stronger fit when you need open-weight and 405b parameters. The gap is real, but it's a question of fit rather than dominance.

Pricing is where they part ways. At $1.00/$5.00 versus $1.30/$5.00 per 1M tokens, Claude Haiku 4.5 is the clear budget pick. Run a typical workload of 1M requests/month at ~1K input / 500 output tokens and Claude Haiku 4.5 keeps roughly $300.00/month in your pocket.

Our take: if cost efficiency drives the decision, Claude Haiku 4.5 wins. Either way, both run through AI API Hub with USDT/USDC payments and instant activation — start with $5 and one API key covers every model.

How to Switch Between Models

Since both Claude Haiku 4.5 and Llama 4 405B are available through AI API Hub with OpenAI-compatible API format, switching between them requires only changing the model name parameter. Your existing SDK code works without modification.

Python — Switch from Claude Haiku 4.5 to Llama 4 405B
from openai import OpenAI
client = OpenAI(api_key="YOUR_KEY", base_url="https://api.apiyihe.org/v1")
# Before: response = client.chat.completions.create(model="claude-haiku-4.5", messages=[...])
# After:  response = client.chat.completions.create(model="llama-4-405b", messages=[...])
Node.js — Switch from Claude Haiku 4.5 to Llama 4 405B
import OpenAI from "openai";
const client = new OpenAI({apiKey: process.env.KEY, baseURL: "https://api.apiyihe.org/v1"});
// Before: model: "claude-haiku-4.5"
// After:  model: "llama-4-405b"
cURL — Switch from Claude Haiku 4.5 to Llama 4 405B
curl https://api.apiyihe.org/v1/chat/completions \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"model": "llama-4-405b", "messages": [{"role":"user","content":"Hello"}]}'

💡 AI API Hub supports both models through one API key. No separate accounts needed. Pay with USDT/USDC for all models.

Frequently Asked Questions

What is the difference between Claude Haiku 4.5 and Llama 4 405B?

They come from different providers and optimize for different things. Claude Haiku 4.5 is Anthropic's haiku model — 200K context, $1.00/1M input. Llama 4 405B is Meta's llama model — 256K context, $1.30/1M input. The short version: pick based on context size, price, and which capabilities your app actually needs.

Which model is cheaper?

Claude Haiku 4.5 is cheaper at $1.00/1M input. At typical volumes that difference compounds — run the cost calculator above with your real request count to see the monthly gap.

Which model is better for coding?

Neither is a dedicated coding model. Check the features table above to see what each actually supports.

Which model has a larger context window?

Llama 4 405B wins on context — 256K versus 200K. That matters for long documents, large codebases, or multi-turn conversations that need to stay coherent.

Which model is faster?

Claude Haiku 4.5 generally responds faster — lighter models tend to have lower latency, though Llama 4 405B may pull ahead on complex reasoning where its larger capacity helps. For latency-critical apps, benchmark both at your real workload.

Which model should I choose?

It depends on your priority. If cost drives the decision, go with Claude Haiku 4.5 ($1.00/1M). If you need to process long documents or large contexts, Llama 4 405B and its 256K window is the safer bet. If you're building AI agents, Claude Haiku 4.5 is your only tool-calling option here. When in doubt, start with the cheaper model and upgrade only if quality demands it.

Can both models use function calling?

Not equally. Claude Haiku 4.5 supports function calling; Llama 4 405B does not. If agents are central to your app, that narrows the choice.

How much does Claude Haiku 4.5 cost?

Claude Haiku 4.5 runs $1.00/1M input and $5.00/1M output, with 200K of context. It's pay-as-you-go with no minimum — through AI API Hub you can start with $5 and scale up.

How much does Llama 4 405B cost?

Llama 4 405B runs $1.30/1M input and $5.00/1M output, with 256K of context. It's pay-as-you-go with no minimum — through AI API Hub you can start with $5 and scale up.

Which model is better for enterprise use?

Neither is exclusively enterprise-tier. For heavy enterprise use, look at the flagship options in each provider's lineup.

Which model is better for AI agents?

Agent support differs — see the function-calling answer above.

How do I access these APIs?

Both run through AI API Hub on one OpenAI-compatible endpoint. Register at api.apiyihe.org, deposit USDT or USDC (no credit card), grab your API key, and call https://api.apiyihe.org/v1 with model name "claude-haiku-4.5" or "llama-4-405b". One key unlocks every model.

Can I switch between these models without changing my code?

Yes — because AI API Hub is OpenAI-compatible, moving from Claude Haiku 4.5 to Llama 4 405B (or back) is just a model-name change. Your SDK setup, message format, and streaming logic stay exactly the same.

Final Verdict: Which Should You Buy?

🏆 Overall Winner
Claude Haiku 4.5
Close pricingCompare by features
Cheapest
Claude Haiku 4.5
$1.00/1M input
Best Value
Claude Haiku 4.5
lowest total $6.00
Largest Context
Llama 4 405B
256K
Best for Agents
Llama 4 405B
tool calling

💰 Cheapest pricing · ⚡ Instant API key · 🚫 No credit card · 💎 Pay with USDT/USDC · 🔌 OpenAI-compatible

Conclusion: Claude Haiku 4.5 is the cheaper choice — save $300.00/month (8%) at your volume. Buy Claude Haiku 4.5 API for the cheapest pricing and instant API key.

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