Mercury 2
Mercury 2Alternatives?
CheaperGPT-6.1 Terralow×6.7-39%$0.055BetterGPT-6 Lunalow×2.4-95%$0.005Function calling only with none · Chat Completions+3
OpenKimi K3max×5.8+2,140%$2.00Sampling parameters are fixed+3CheaperGPT-5.6 Lunahigh×5.8-51%$0.044
CheaperClaude Haiku 5.5high×4.5-11%$0.079Remove sampling parameters+5GPT-6.1 Terralow×6.7-39%$0.055GPT-6 Lunamax×6-24%$0.068Function calling only with none · Chat Completions+3GPT-5.6 Lunahigh×5.8-51%$0.044Claude Haiku 5.5high×4.5-11%$0.079Remove sampling parameters+5
Hy3thinkingOpen×2.9-19%$0.072GPT-6 Lunalow×2.4-95%$0.005Function calling only with none · Chat Completions+3GPT-5.6 Lunalow×3.7-89%$0.01Claude Haiku 5.5low×2.9-73%$0.024Remove sampling parameters+5GPT-5 Minihigh×2.2-40%$0.053GPT-6.1 Terralow×6.7-39%$0.055Kimi K3maxOpen×5.8+2,140%$2.00Sampling parameters are fixed+3
MiMo v2.6 ProthinkingOpen×5.1+49%$0.13Pass back reasoning_content+3
Muse Spark OpenxhighOpen×4.9+846%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1
DeepSeek V4.1 Flash 1017maxOpen×4.5+193%$0.26Pass back reasoning_content · Chat Completions+4
Qwen3.8 27BxhighOpen×4.3+1,184%$1.15max_tokens range · QwenCloud+4Mercury 2.5thinkingsame+12%$0.1Mercury 3n/a—$0.10 / $0.35All inception models →History
2 versionsBenchmarks
in Chat & KnowledgeFAQ
How much does Mercury 2 cost?›
$0.25 per 1M input tokens and $0.75 per 1M output tokens; cached input $0.025 per 1M. A typical benchmark task costs about $0.089 at high effort.
Is Mercury 2 free to use?›
There is no free API; the cheapest paid price is $0.25 per 1M input tokens.
How good is Mercury 2, and what is it best at?›
#137 of 336 in Chat & Knowledge, #77 of 134 in Coding, #104 of 135 in Agents & Tool Use, #131 of 197 in Writing & Language, #96 of 135 in Vision & Documents. Strongest at: Instructions.
Is Mercury 2 better than Claude Haiku 4.5?›
On GDP.pdf · AA all-pass, Mercury 2 scores 3.8 vs 3.8 — about the same. It is 61% cheaper per task.
How can I use Mercury 2?›
Through the API of Inception.
What is the context window of Mercury 2?›
128K tokens, with up to 50K output tokens.
When was Mercury 2 released? Is there a newer version?›
Released 2026-02-20. It has been superseded by Mercury 2.5.
Is Mercury 2 open source?›
No, Mercury 2 is a closed model available through an API. The closest open-weights option here is Kimi K3.
Can Mercury 2 read images?›
No, it accepts text only.
What is Mercury 2?›
Mercury 2 is a closed language model from inception, released Feb 2026.
What are the best alternatives to Mercury 2?›
GPT-6.1 Terra (cheaper), GPT-6 Luna (better), Kimi K3 (open weights).