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Anthropic: Claude Haiku 4.5 (batch)

anthropic/claude-haiku-4.5:batch

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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

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ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQ

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), 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.

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.

About Anthropic: Claude Haiku 4.5 (batch)

OpenRouter makes Anthropic: Claude Haiku 4.5 (batch) available through a unified, OpenAI-compatible API using the model ID anthropic/claude-haiku-4.5:batch. It is served by Anthropic.

Anthropic: Claude Haiku 4.5 (batch) accepts text, images and files such as PDFs and returns text. It has a 200,000-token context window and a maximum output of 64,000 tokens.

On OpenRouter, Anthropic: 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. Effective pricing can be lower when prompt caching applies. It was released on October 15, 2025.

More models from Anthropic

  • Claude Opus 5 (Fast)
  • Claude Opus 5
  • Claude Sonnet 5

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 Opus 5 (Fast), Claude Opus 5, Claude Sonnet 5 and 13 more are other text models from Anthropic.

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

$0.50$2.50$0.05----
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AutoExacto Benchmarks
GPQA DiamondTAU-Bench
Amazon Bedrock (EU)
74.1%69.3%
Amazon Bedrock (US)
74.4%69.0%
auto-routing
71.7%69.6%
Google Vertex (Europe)
72.2%68.9%
Anthropic
74.0%67.0%
Google Vertex (US)
71.7%69.0%
Amazon Bedrock (Global)
72.4%67.9%
Azure
72.0%62.6%
Google Vertex
71.0%63.3%

Not enough uptime data to display yet.

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.

Not enough data for apps using this model yet.