Inception: Mercury Coder
Analysis Summary
Inception Mercury Coder is a coding-oriented model from Inception with tool use and function calling support, a 128K context window, and aggressive pricing at $0.25 input / $0.75 output per million tokens. The combination of agentic features and low cost gives it potential appeal for high-volume coding automation.
However, with no published benchmark data, its actual coding capability against models like those on LiveCodeBench or SWE-bench cannot be assessed. Businesses evaluating it for production coding pipelines would need to run internal evaluations before deployment.
The pricing is attractive for experimentation, and the tool use support means it could slot into agentic workflows. Until benchmark data is available, it is best treated as a low-cost option to test rather than a primary coding model.
Assessed June 6, 2026
Editorial notes
Inception Mercury Coder offers tool use, function calling, and a 128K context at very low pricing, but has no published benchmarks to validate its coding performance.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Inception: Mercury Coder compares
Its 128K-token context window is larger than 43% of the models we list. At $0.25 per million input tokens it is cheaper than 47% of comparable models.
About Inception: Mercury Coder
Mercury Coder is the first diffusion large language model (dLLM). Applying a breakthrough discrete diffusion approach, the model runs 5-10x faster than even speed optimized models like Claude 3.5 Haiku..
Capabilities
How does Inception: Mercury Coder stack up?
Compare side-by-side with other legacy models.
Model Information
| OpenRouter ID |
inception/mercury-coder
|
| Provider | inception |
| Release Date | April 30, 2025 |
| Context Length | 128,000 tokens |
| Max Completion | 32,000 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.25 | $0.000250 |
| Output | $0.75 | $0.000750 |
Leaderboard Categories
External Resources
Frequently asked questions about Inception: Mercury Coder
How much does Inception: Mercury Coder cost?
Inception: Mercury Coder costs $0.25 per million input tokens and $0.75 per million output tokens.
What is the context window of Inception: Mercury Coder?
Inception: Mercury Coder has a context window of 128,000 tokens (128K).
What can Inception: Mercury Coder do?
Inception: Mercury Coder supports tool use and function calling.
Who created Inception: Mercury Coder?
Inception: Mercury Coder is developed by Inception and was released on April 30, 2025.
