Skip to content
  • Models
  • Rankings
  • Ori
Sign Up
Sign Up
OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Benchmarks
  • Apps
  • Discover
  • Models
  • Collections
  • Providers
  • Pricing
  • Business
  • Enterprise
  • Labs

Company

  • About
  • Blog
  • Careers
    Hiring
  • Privacy
  • Terms of Service
  • Trust Center
  • Support
  • Works With OR
  • Data
  • Brand

Developer

  • Documentation
  • API Reference
  • Developer Platform
  • Status

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube

Model usage data, product updates, and research reports. One email each week.

By subscribing you agree to receive the OpenRouter newsletter: model usage data, product updates, and research reports, about one email a week. Unsubscribe anytime via the link in every email. See our Privacy Policy.

Favicon for anthropic

Anthropic: Claude Haiku 4.5 (batch)

anthropic/claude-haiku-4.5:batch

Compare

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications.

It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.

Modalities

In / Out Price

$0.50 / $2.50per 1M

Context

200K

Released

Oct 15, 2025

Compare
ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQExplore

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), Floor (cheapest), or Exacto (highest tool-calling accuracy).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

Benchmark score summary for Anthropic: Claude Haiku 4.5 (batch) (Artificial Analysis and Design Arena)
SourceBenchmarkScore
Artificial AnalysisClaude 4.5 Haiku (Reasoning) Intelligence Index17.6
Artificial AnalysisClaude 4.5 Haiku (Reasoning) Coding Index43.9
Artificial AnalysisClaude 4.5 Haiku (Reasoning) Agentic Index10.3
Artificial AnalysisClaude 4.5 Haiku (Reasoning) GPQA Diamond67.2%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) HLE10.4%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) IFBench54.3%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) τ²-Bench Telecom54.7%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) AA-LCR74.3%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) GDPval-AA17.7%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) CritPt0.0%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) SciCode42.2%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) Terminal-Bench Hard27.3%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) AA-Omniscience Accuracy18.0%
Artificial AnalysisClaude 4.5 Haiku (Reasoning) AA-Omniscience Non-Hallucination Rate72.7%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) GPQA Diamond64.6%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) HLE4.2%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) IFBench42.0%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) τ²-Bench Telecom32.5%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) AA-LCR49.7%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) CritPt0.0%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) Terminal-Bench Hard27.3%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) AA-Omniscience Accuracy14.4%
Artificial AnalysisClaude 4.5 Haiku (Non-reasoning) AA-Omniscience Non-Hallucination Rate74.3%
Design ArenaClaude Haiku 4.5 Models Arena 3D Elo1101
Design ArenaClaude Haiku 4.5 Models Arena Asciiart Elo1158
Design ArenaClaude Haiku 4.5 Models Arena Code Categories Elo1130
Design ArenaClaude Haiku 4.5 Models Arena Data Visualization Elo1139
Design ArenaClaude Haiku 4.5 Models Arena Game Development Elo1121
Design ArenaClaude Haiku 4.5 Models Arena SVG Elo1048
Design ArenaClaude Haiku 4.5 Models Arena UI Component Elo1115
Design ArenaClaude Haiku 4.5 Models Arena Website Elo1135

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

Quick Start

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

Explore more models

AI Models with Vision: Multimodal LLMs for Image UnderstandingCollectionAI Model RankingsRanking

Frequently asked questions

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications.

Claude Haiku 4.5 (batch) costs $0.50/M input tokens and $2.50/M output tokens, with separate rates for Cache Read at $0.05/M tokens, Cache Write at $0.625/M tokens, Cache Write (1h) at $1.00/M tokens, and Web Search at $10.00/1K calls.

Claude Haiku 4.5 (batch) has a 200,000 token context window. It supports up to 64,000 completion tokens.

Yes. Claude Haiku 4.5 (batch) accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Claude Haiku 4.5 (batch) accepts text, images, and files such as PDFs as input and returns text.

Claude Fable 5.1, Claude Opus 5, Claude Sonnet 5 and 11 more are other text models from Anthropic.

Claude Haiku 4.5 (batch) was released on October 15, 2025.