modelsdev Claude-Sonnet-4.5 (poe/anthropic/claude-sonnet-4.5)
modelsdev Claude-Sonnet-4.5 costs USD 2.5758 per 1M input tokens and USD 12.8788 per 1M output tokens (community cross-check, https://models.dev/), verified 2026-10-24 11:44 UTC.
Last verified 2026-10-24T11:44:01+00:00 · Source: https://models.dev/ (community cross-check, waak source modelsdev)
A first-party listing of this model exists and is shown below; this row is the community cross-check.
Price
- Input
- USD 2.5758 / 1M tokens
- Output
- USD 12.8788 / 1M tokens
- Cached input
- USD 0.2576 / 1M
- Cache write
- USD 3.2197 / 1M
- This price since
- 2026-10-21T17:06:00+00:00
- FX used
- 1 EUR = 1.1234 USD (ECB)
- Billing
- per_token
Specification
- Context window (tokens)
- 983,040
- Max output
- 32,768
- Open weights
- no
- Reasoning
- yes
- Source kind
- community
- Vendor
- poe
- Region
- global
- Listing
- listing not verifiable
aggregator / community mirror: no first-party public page to check against - First seen
- 2026-10-19T22:42:32+00:00
- SKU id
llm/modelsdev/poe/anthropic/claude-sonnet-4.5
Other listings of this model
Sources can disagree. The provider's own listing is first-party; LiteLLM, OpenRouter and models.dev are community cross-checks. Differences are shown, not resolved.
| SKU | Source | Input / 1M | Output / 1M | vs this page | Last verified |
|---|---|---|---|---|---|
| llm/aws-bedrock/anthropic/claude-sonnet-4.5 | aws-bedrock-offers-us-east-1 (first-party) | 3.30 | 16.50 | differs differs by +28.1% | 2026-10-23T20:46:13+00:00 |
| llm/official/anthropic/claude-sonnet-4-5 | anthropic-pricing (first-party) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T01:11:20+00:00 |
| llm/modelsdev/aihubmix/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.30 | 16.50 | differs differs by +28.1% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/aimlapi/anthropic/claude-sonnet-4.5 | modelsdev (community cross-check) | 3.174 | 15.87 | differs differs by +23.2% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/anthropic/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/azure-cognitive-services/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/azure/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/cloudflare-ai-gateway/anthropic/claude-sonnet-4.5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/impossibl/anthropic/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/kilo/anthropic/claude-sonnet-4.5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/llmgateway-providers/anthropic/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/llmgateway-providers/aws-bedrock/claude-sonnet-4-5 | modelsdev (community cross-check) | 3.00 | 15.00 | differs differs by +16.5% | 2026-10-24T11:44:01+00:00 |
Price history (90 days)
| Observed (UTC) | Price | USD | EUR | Output / 1M | Snapshot |
|---|---|---|---|---|---|
| 2026-10-21T17:06:00+00:00 | USD 2.58 | 2.5758 | 2.2929 | 12.8788 | #594 |
| 2026-10-19T22:42:32+00:00 | USD 2.60 | 2.60 | 2.3163 | 13.00 | #34 |
Each row is a change point: the price held from that moment until the next row. Full history: JSON · CSV.
Changes
| Seen | Kind | Change |
|---|---|---|
| 2026-10-21T17:06:00+00:00 between 2026-10-21 and 2026-10-21 |
Price change input, per 1M tokens | 2.6 → 2.5758 USD (-0.9%) |
API: /v1/skus/llm/modelsdev/poe/anthropic/claude-sonnet-4.5
Cite this
Free to reuse under CC BY 4.0 with this credit. The numbers are list prices, not transacted prices.
InfraRabbit (2026). modelsdev Claude-Sonnet-4.5 [data as of 2026-10-24]. https://infrarabbit.com/llm/modelsdev/poe/anthropic/claude-sonnet-4.5 (accessed 2026-10-24). List prices, not transacted prices. CC BY 4.0.
BibTeX
@misc{infrarabbit_llm_modelsdev_poe_anthropic_claude_sonnet_4_5_2026,
author = {{InfraRabbit}},
title = {modelsdev Claude-Sonnet-4.5},
year = {2026},
howpublished = {\url{https://infrarabbit.com/llm/modelsdev/poe/anthropic/claude-sonnet-4.5}},
note = {Data as of 2026-10-24; accessed 2026-10-24; list prices, not transacted prices; CC BY 4.0}
}