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amazon-nova-experimental-chat
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Step 5 Preview
Mercury 3
Mercury 3 is a proprietary model from Inception, released Oct 16, 2026. It ranks #24 of 27 on the Vals Index with 43.66%. It costs $0.10 per million input tokens and $0.35 per million output tokens, with a 1M-token context window.
- Developer
- Inception
- Released
- Oct 16, 2026
- Context window
- 1M
- Price in / out, per 1M tokens
- $0.10 / $0.35
- Weights
- Proprietary
- Inputs
- Text
- Reasoning
- Yes
- Tool use
- Yes
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| Vals IndexVals AI | 43.66% | 24 / 27 | $0.48 | |
| Terminal-Bench 4.0Coding | 3.03% | 48 / 55 | $0.42 | |
| Vibe Code BenchCoding | 60.93% | 53 / 115 | $0.63 | |
| Code MigrationCoding | 39.26% | 21 / 28 | $2.11 | |
| Finance AgentFinance | 54.71% | 27 / 31 | $0.06 | |
| Finance IndexFinance | 47.22% | 28 / 31 | $0.10 | |
| Tax Agent BenchFinance | 18.17% | 52 / 76 | $0.05 | |
| Legal IndexLaw | 62.96% | 24 / 28 | $0.10 | |
| Legal Research BenchLaw | 28.85% | 54 / 85 | $0.07 |
Vals AI, as of Oct 24, 2026.
Compare Mercury 3
Inception
Builds Mercury, diffusion language models that generate text in parallel. Founded 2024, based in Palo Alto. inceptionlabs.ai
Questions
Who makes Mercury 3?
Mercury 3 is made by Inception, founded 2024 and based in Palo Alto.
How much does Mercury 3 cost?
$0.10 per million input tokens and $0.35 per million output tokens, at its provider’s list price.
What is Mercury 3’s context window?
1M tokens (1,000,000).
Is Mercury 3 open source?
No. Mercury 3 is proprietary and served through its provider’s API.