Previous edition: finish_reason mix per provider, April 2026
finish_reason mix per provider, October 2026
finish_reason mix per provider, October 2026
Each bar is normalized to 100%. Click a legend item to isolate a series.
In October 2026 Vertex (Claude) had the highest tool_calls share at 34%, followed by Sference at 31% and DeepSeek at 31%.finish_reason wasn't populated before 2026, this note covers October 2026. Source: Requesty production gateway.
How often do providers end a response with a tool call? In October 2026 Vertex (Claude) had the highest tool_calls share at 34%, followed by Sference at 31% and DeepSeek at 31%.
Why it mattersThe finish_reason mix shows what a provider is used for. A high tool_calls share means agent traffic; a high stop share means chat or batch completions.
Period
Oct 2026
Updated
November 11, 2026
ID
finish-reason-october-2026
§ 01
Key findings
- 01Vertex (Claude): 34% tool_calls, 53% stop.
- 02Sference: 31% tool_calls, 60% stop.
- 03DeepSeek: 31% tool_calls, 64% stop.
- 04Azure: 25% tool_calls, 53% stop.
§ 01b
Questions this answers
- Which provider serves the most agentic traffic?
- What is the finish_reason mix by provider?
- How often do responses hit the length limit?
§ 02
Data
| Provider | tool_calls(percent) | stop(percent) | length(percent) | blank/error(percent) |
|---|---|---|---|---|
| Vertex (Claude) | 33.55% | 52.78% | 8.97% | 4.70% |
| Sference | 31.18% | 59.59% | 4.38% | 4.85% |
| DeepSeek | 30.60% | 64.50% | 1.17% | 3.73% |
| Azure | 25.13% | 53.15% | 0.24% | 21.48% |
| Bedrock | 22.54% | 63.34% | 5.83% | 8.29% |
| Anthropic | 21.24% | 70.89% | 2.01% | 5.86% |
| Vertex (Gemini) | 12.79% | 56.48% | 0.58% | 30.15% |
| OpenAI | 12.16% | 76.05% | 0.40% | 11.39% |
| DeepInfra | 9.59% | 81.32% | 0.49% | 8.60% |
| TensorX | 5.26% | 30.92% | 2.13% | 61.69% |
| Nebius | 0.21% | 1.81% | 0.91% | 97.07% |
| Typesafe | 0.00% | 91.38% | 0.00% | 8.62% |
§ 03
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ID: finish-reason-october-2026·Updated November 11, 2026·Period Oct 2026