Claude Opus 5 vs Gemini 3.1 Flash-Lite
Benchmark Performance
Available Benchmarks
| Benchmark | Claude Opus 5 | Gemini 3.1 Flash-Lite |
|---|---|---|
| ToneBench2026-08-14-10-task · overall_score · leader | 90.37100% of row best · points · Claude Opus 5 (max effort) · 2,832 output tokens / case | 69.5077% of row best · points · Gemini 3.1 Flash-Lite · 1,571 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 1 benchmark winOverall lead | 0 benchmark wins |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | Claude Opus 5 | Gemini 3.1 Flash-Lite |
|---|---|---|
| Developer | Anthropic | Google DeepMind |
| Family | Claude 5 | Gemini 3 |
| Model | Claude Opus 5 | Gemini 3.1 Flash-Lite |
| Version | Claude Opus 5 | Gemini 3.1 Flash-Lite |
| Lifecycle | active | active |
| Released | 2026-07-24 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image, Video, Audio, Document |
| Output modalities | Text | Text |
| Context window | 1,000,000 | 1,048,576 |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Anthropic (Standard), Deepinfra (Standard), Openrouter (Standard) | Google AI (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
13 comparable fields · 7 material differences · Pair passes the primary-source comparison gate
Claude Opus 5 Capabilities
Gemini 3.1 Flash-Lite Capabilities
Internal Comparison Graph
Related Comparisons
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|---|---|---|---|
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Claude Opus 5Anthropic | vs | cross-developer peersimage, text | |
Claude Opus 5Anthropic | vs | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Opus 5 vs Gemini 3.1 Flash-Lite FAQs
Is Claude Opus 5 or Gemini 3.1 Flash-Lite better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Opus 5 and Gemini 3.1 Flash-Lite, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Opus 5 or Gemini 3.1 Flash-Lite?+
Claude Opus 5 is $5.00 and Gemini 3.1 Flash-Lite is $0.25 per million tokens, so Gemini 3.1 Flash-Lite is cheaper on this metric. Claude Opus 5 is $25.00 and Gemini 3.1 Flash-Lite is $1.50 per million tokens, so Gemini 3.1 Flash-Lite is cheaper on this metric.
Which has a larger context window, Claude Opus 5 or Gemini 3.1 Flash-Lite?+
Gemini 3.1 Flash-Lite has the larger sourced context window. Claude Opus 5 supports 1,000,000 and Gemini 3.1 Flash-Lite supports 1,048,576.
Which performs better in benchmarks, Claude Opus 5 or Gemini 3.1 Flash-Lite?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Opus 5 or Gemini 3.1 Flash-Lite be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Opus 5 is not marked open weight; Gemini 3.1 Flash-Lite is not marked open weight.
Can Claude Opus 5 and Gemini 3.1 Flash-Lite understand images?+
Claude Opus 5 is documented with image input; Gemini 3.1 Flash-Lite is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Opus 5 or Gemini 3.1 Flash-Lite?+
Claude Opus 5 has the larger sourced maximum output: Claude Opus 5 supports 128,000 and Gemini 3.1 Flash-Lite supports 65,536 output tokens.
Do Claude Opus 5 and Gemini 3.1 Flash-Lite support reasoning and tool use?+
Claude Opus 5: reasoning, tool calling, and image input. Gemini 3.1 Flash-Lite: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Opus 5 or Gemini 3.1 Flash-Lite?+
Claude Opus 5 has 3 sourced provider routes; Gemini 3.1 Flash-Lite has 1, so Claude Opus 5 has broader tracked availability.
Which offers better value, Claude Opus 5 or Gemini 3.1 Flash-Lite?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.