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Claude Haiku 4.5 anthropic

Closed weights API only frontier listed on OpenRouter 2025-10-15 (375d ago) · source Last verified 2026-10-25 06:51 UTC Docs ↗ OpenRouter ↗

Release timeline

Stages observed by the nightly radar: announced → API only → weights public → served by third parties. Each entry carries the source it was seen at.

  1. 2025-10-15 · API only source
    seeded from the earliest dated observation when first seen · observed 2026-10-07 20:20 UTC

Description

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...

via OpenRouter listing · observed 2026-10-24 21:26 UTC. The listing text is the provider's own description, not an assessment.

Where to run 5 providers · 9 endpoints

Hosted endpoints observed for Claude Haiku 4.5, sorted by input price (USD per million tokens). Each row names its observer and date; prices change daily, so check the source before quoting. Cheapest observed input price: $1.00/M.

ProviderModel refContextQuant$/M in$/M outtok/sTTFTToolsStatusObserved
Amazon Bedrock
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.00 $5.00 — — yes live 2026-10-24
Anthropic
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.00 $5.00 — — yes live 2026-10-24
Azure
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.00 $5.00 — — yes live 2026-10-24
DeepInfra
deepinfra
anthropic/claude-haiku-4-5 195K — $1.00 $5.00 — — — live 2026-10-24
Google
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.00 $5.00 — — yes live 2026-10-24
Amazon Bedrock
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.10 $5.50 — — yes live 2026-10-24
Amazon Bedrock
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.10 $5.50 — — yes live 2026-10-24
Google
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.10 $5.50 — — yes live 2026-10-24
Google
openrouter
anthropic/claude-haiku-4.5 195K unknown $1.10 $5.50 — — yes live 2026-10-24

Third-party providers observed: 1 (DeepInfra). Cache-read price $0.10/M (source, observed 2026-10-24).

Facts

Context length200,000 tokens (195K) · OpenRouter listing
Modalitiestext + image + file → text
Max completion tokens64,000
Supported parametersinclude_reasoning, max_completion_tokens, max_tokens, reasoning, response_format, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_p
OpennessClosed weights · closed lab
StageAPI only
Confidencemedium
Pricing (USD per M tokens) in $1.00 · out $5.00 · cache read $0.10
OpenRouter list price (cheapest live endpoint) · source · observed 2026-10-24 21:26 UTC

Open alternatives 5

Nearest open-weights models by modality, context and price on this watch list. Not a quality ranking.

ModelOrgParamsContext$/M inLicenseWhy it is here
Qwen3.5-4B Qwen 4.66B 256K — apache-2.0 similar context (262K), vision input
Kimi-K2.6 moonshotai 1.03T 256K $0.45 other similar context (262K), cheaper input price ($0.44935/M vs $1/M), vision input
Qwen3.5-397B-A17B Qwen 403B 256K $0.39 apache-2.0 similar context (262K), cheaper input price ($0.39/M vs $1/M), vision input
gemma-4-E4B-it google 8.00B 128K — apache-2.0 vision input
Kimi-K2.5 moonshotai 1.03T 256K $0.45 other similar context (262K), cheaper input price ($0.45/M vs $1/M), vision input

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Sources

Radar run: 2026-10-25 06:51 UTC · Last verified 2026-10-25 06:51 UTC