TL;DRDrex v1.5 by Nace.AI costs $0.05 per 1M input tokens and $0.00 per 1M output tokens and carries a context window of 131K tokens — observed 2026-10-23.
Canonical iddrex-v1-5
Context window131K tokens Access typeOpen Weight
Blended $/1M$0.037575% input / 25% output
Capability shape
Seven axes from the ranking source. A missing axis is drawn as a gap.
Capability evidence
Multimodal & GroundedUnavailable Instruction FollowingUnavailable Runtime service evidence
Measured values with the date they were observed. Nothing is inferred from a sibling model or a provider claim.
Time to first token: latency to the first answer chunk (Artificial Analysis, via BenchLM). Reasoning models include thinking time, so values can run to tens or hundreds of seconds.
Evidence key: ObservedUnavailable
Runtime measurements| Measurement | Value | Observed | Last good | Evidence |
|---|
| Time to first token | Unavailable | Unavailable | Unavailable | |
| Throughput | Unavailable | Unavailable | Unavailable | |
Regional or per-endpoint measurements appear only when the API supplies them; none are modelled here.
Endpoint and price matrix
Every published price component, including cache reads and writes.
Price components| Component | USD | Evidence |
|---|
| Input / 1M tokens | $0.05 | |
| Output / 1M tokens | $0.00 | |
| Cache read / 1M tokens | Unavailable | |
| Cache write / 1M tokens | Unavailable | |
| Blended / 1M (75% input / 25% output) | $0.0375 | |
| Cost per successful task (LiveBench) | Unavailable | |
Self-hosted listingNace.AI bills drex-v1.5 at $0.05 per million input tokens, with no per-request or per-question fee. Output is not billed. Requests for the retired drex-v1.1 are billed at this rate.The rates above are a hosted price matched from another provider, not a first-party list price.
Workload-aware monthly cost example
10 conversations per day × 8 messages × 22 active days, 1200 input and 400 output tokens per message, no cache. This uses the same calculator as the cost simulator, so an unavailable applicable rate makes the example unavailable too.
Modelled monthly cost$0.11
Modelled tokens2.82M
Benchmark record
6 matched benchmark rows with their published value, unit, and provenance.
external
external benchmarks| Benchmark | Value | Tasks | Difficulty | Provenance |
|---|
| Decision Index Full Score Decision Index 0.4 | 45.8 | Private same-skill and new-domain task sets; 110,201 public-benchmark decisions shown alongside | Private decision tasks | Decision Index leaderboard |
| Decision Index Knowledge Decision Index 0.4 Knowledge | 31.2 | Knowledge area of the Decision Index evaluation | Knowledge decision tasks | Decision Index leaderboard |
| Decision Index Language Decision Index 0.4 Language | 40.8 | Language area of the Decision Index evaluation | Language decision tasks | Decision Index leaderboard |
Lifecycle and limitations log
Lifecycle events the source associates with this model, plus what this profile does not claim.
No lifecycle event references this model.That is not evidence the model has no lifecycle plan — only that this source published none.
What this profile does not claimValues are reproduced exactly as their sources published them, in the units those sources declared; none are converted, interpolated, or averaged across providers. Any field marked unavailable was attempted and not returned — the attempt timestamp is in each badge. Last attempted fetch for this model’s score: 2026-10-23 13:17 UTC.
ModelScale