Claude Sonnet 4.6 (high), Terminus-2 vs. Step 5 Preview (Reasoning), Terminus-2
Claude Sonnet 4.6 (high), Terminus-2 against Step 5 Preview (Reasoning), Terminus-2: Geospatial Agent Index, each evaluation, cost, time and tokens, on the same tasks and limits. Methodology.
Side by side
| Metric | Claude Sonnet 4.6 (high), Terminus-2 | Step 5 Preview (Reasoning), Terminus-2 |
|---|---|---|
| Geospatial Agent Index: Text only | 58 | 34 |
| Geospatial Agent Index: Text + vision | No data | No data |
| Earth-Bench V2 score | 59 | 32 |
| GeoBenchX score | 57 | 17 |
| GS-QA2 score | No data | 52 |
| Vision agents score | No data | No data |
| GeoAgentBench score (Guided workflows; not in the Agent Index) | 96 | 50 |
| GeoAnalystBench score (Guided workflows; not in the Agent Index) | 100 | 53 |
| OGD4All score (standalone; in no index) | No data | No data |
| GeoNatureAgent score (standalone; in no index) | No data | No data |
| MultiGlobeQA score (standalone; in no index) | No data | No data |
| GeoAgentEval score (standalone; in no index) | No data | No data |
| Remote sensing and raster analysis score | 58 | 35 |
| GIS analysis score | 40 | 67 |
| Climate and time series score | 73 | 34 |
| Spatial statistics score | 46 | 0 |
| Making maps score | 75 | 19 |
| Recognising infeasible requests score | 40 | 24 |
| Cost per task | $0.25 | $0.071 |
| Time per task (at 100 output tokens/s) | 3.2 min | 7.9 min (estimated) |
| Tokens per attempt | 76k | 90k |
| Turns per attempt | 6.9 | 11.1 |
| Input price per 1M tokens | $3.00 | $1.00 |
| Output price per 1M tokens | $15.00 | $2.70 |
| Context window | 1,000,000 | 1,024,000 |
| Image input | Yes | Yes |
| Developer | Anthropic | StepFun |
Charts
Not yet ranked. Claude Sonnet 4.6 (high), Terminus-2: no GS-QA2 score yet. Grey placeholders mark these entries in the index, cost and output token charts; their height is not a value. Bars appear once it has a score on every index evaluation. Results so far are in the side-by-side table.
Geospatial Agent Index
Equal average of Earth-Bench V2, GeoBenchX and GS-QA2, 0 to 100 · Higher is better
Data table: Geospatial Agent Index
| Model | Developer | Geospatial Agent Index |
|---|---|---|
| Step 5 Preview (Reasoning), Terminus-2 | StepFun | 34 |
Cost per task
Average cost per task (USD) · Lower is better
How to read this chart
Not shown: not yet ranked. 1 entry: no GS-QA2 score yet. Every entry is on the models page.
Data table: Cost per task
| Model | Developer | Cost per task |
|---|---|---|
| Step 5 Preview (Reasoning), Terminus-2 | StepFun | $0.071 |
Output tokens per task
Average output tokens per attempt, reasoning included · Lower is better
How to read this chart
Not shown: not yet ranked. 1 entry: no GS-QA2 score yet. Every entry is on the models page.
Data table: Output tokens per task
| Model | Developer | Output tokens per task |
|---|---|---|
| Step 5 Preview (Reasoning), Terminus-2 | StepFun | 10k |
Frequently asked questions
Which scores higher on the Geospatial Agent Index, Claude Sonnet 4.6 (high), Terminus-2 or Step 5 Preview (Reasoning), Terminus-2?
Which is cheaper per task, Claude Sonnet 4.6 (high), Terminus-2 or Step 5 Preview (Reasoning), Terminus-2?
Which writes fewer output tokens per task, Claude Sonnet 4.6 (high), Terminus-2 or Step 5 Preview (Reasoning), Terminus-2?
Which has the larger context window, Claude Sonnet 4.6 (high), Terminus-2 or Step 5 Preview (Reasoning), Terminus-2?
More: Claude Sonnet 4.6 (high), Terminus-2 · Step 5 Preview (Reasoning), Terminus-2 · All comparisons